There are two answers to this question:
The first is to use your smart tongue to come back with witty, biting remarks that put the bullies in their place and keep them there. There have been many accounts from people who were not big or strong at school, but kept the bullies at bay with their sharp remarks. But it may not always be wise to make sexually motivated insults back at them. That puts you on the same level as them. If there is an investigation you may be found equally At Fault. Your only excuse is that they started it, which may be difficult to prove. The second way might be better.
The second way is to ignore them, but take up the issue with someone else in authority. Sexually motivated insults are illegal in most countries and are certainly bullying if they take place in a school or a workplace. Managers, Union representatives, teachers and school principals all have a duty to keep a safe environment for their workers and pupils. If they don't listen to you at first, keep telling them, and go over their heads to theirmanagers, if they do nothing.
There is nothing, because you shouldn't be a druggie.
101insults.com Good insults! You'll laugh. Heres another good one: thejokeyard.com/funny_insults/index.html
There are no good comebacks for ex's.
just dont say anything but if it gets out of hand call her a stupid hore and set romers that she is bysexual and that you have proof that she is and say that you saw her and her friend making out that will make her back of ;};} HA!HA!HA!
I know you are but what am I.
Don't worry, the feeling is mutual!
A good classy comeback for a girl is "that is why there is only one me".
Says the murderer....
"If it exploded, how am I talking to you?"
Just say thank you for the compliment.
My insults goaded him to violence.
There are several books you can purchase either in Barnes and Noble or via the web for funny comebacks. A site called silentreed in hubpages has some realy good ones.