IMO, you have 3 choices:
1. Deal with it yourself.
Do some cold approaching, improve your inner game, etc etc. I got bullied when i was 11 years old. Now i look at the school photos of the kids who bullied me and its like 'wtf? who gives a **** now???'.
2. Fight the kid.
Get some GOOD martial arts training. I train MT Kickboxing and Mixed Grappling. Tell him you wanna fight him but you want to fight like a man. No friends, no weapons, no cheap shots. Set up a time and place and beat his ass.
3. AMOG him.
Go to fastseduction.com and have a look at AMOG tactics. Here are some of the ones i use most in my sets:
'Hey man, your a legend, seriously this guy is the coolest'
'Dude, your cool'
'You look different today man, are you on drugs?'
'You look pale man, you need some more sun!!!'
'Whats wrong man, you sound angry today, has something bad happened to you?'
'Dude you have the best lines, seriously!!!'
'Hey man, keep talking, INSULT ME MAN, lets hear your pitch, keep going'
'Dude, you should be a comedian, seriously you must think this stuff up all day'
'**** your GOOD man, i cant keep up, your THE KING'
'I totally love your touchie behaviour man!'
'Dude im SICK of your positive attitude'
'wow man, your like barney the dinosour'
'dude your like... michael jackson... except didnt touch me when i was little'
'Haha man, u BADBOY, your like bart simpson all grown up!'
'Hey man you should be my commentator, i love all your little comments and ****'
'Ok amigo, no touchie touchie, gay clubs down there somewhere'
'Hey man, this is a conversation, stop getting all scientific on me'
'Wow, i got my own little parrot here, your doing a great job man'
'calm down man, your so tightly wound, like a little stress pot'
'wow, man relax, start breathing, i give u my most sincere apology'
'im not ****ing with man, im chilling out, your getting creepy on me, im leaving now, have a good time man'
[For when **** starts escalating, say with a blank face]
'Can you BELIEVE this guys still a virgin'
'Wow mate, nice x-item *poke him*'
-->Give him a label and feed everything into that label
(Holy **** your like the sun and these people are your planets!)
'Holy **** man, lets be friends, you can be my best friend'
'Wow, this guy is the coolest, can you believe hes gay'
'Dude, your an alphamale. Like the leader of the pack, you own this area man. You can shout out **** at people you dont know, put your hands on other guys.'
(Then whenever he does something go 'see buddy, ALPHAMALE, i cant mess with you')
'Hey man, have you seen the movie fight club??? ok i want you to hit me AS HARD AS YOU CAN. No no wtf am i doing. Look at you man youd ****** kill me'
'Fight you man??? man you'd KILL me! look at those pythons! *squeeze his arms* you get them checked at the AIRPORT or something?'
'Hey man, i like your hair, its totally the coolest ever'
'OOOOOHHHHH, TOUGH GUY!'
You should be in a comedy movie man, your a STAR!!!'
'Get a load of this guy *point*, ****ing queer eye for the straight guy'
'Holy **** man, your CRAZY, you totally ARE the coolest guy'
'*say with top projection* **** dude! Hooking up with ONE guy doesnt make you gay! Dont worry about it!!!'
'Dude, youve been checking me out for HALF AN HOUR now, just be yourself'
'OMG, this is like big brother, your always watching me'
'Wow, look at the STYLE on this guy!'
'SOMEONE didnt get enough attention as a child'
'NOOOO man, i could NEVER be as cool as you, im sorry for stepping in your SUPER COOL Territory man.'
'Dude your like my personal identity coach!'
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Remember that the AMOG lines must come off like a coolguy spreading his wings. Not an insecure lamo spouting ****. Watch natural cool guys in action for more example.