The act of rubbing one's mustache against another man's mustache, preferably while dressed as The Village People.
"Dude, i'm not going to shave for a month so we can have sweet caterpillar battles."
"Let me go get my leather biker cap, i'm going to battle the shit out of your caterpillar."
When a penis is erect and it moves without you moving your body
When the gang bangers woke up they all had wriggling caterpillars
A strip of soft hair grown above the upper lip of an adolescent man, growth similar that to a moustache, but resembles that of a hairy caterpillar balancing on the upper lip.
Look at his little moustache, it looks more like a Caterpillar Balancing on his top lip.
Putting a caterpillar egg in your urethra, when you see it start to crawl out masturbate until you cum out the caterpillar
I tried to Missouri caterpillar last week but it died inside
When a girl is sucking a long hairy penis and her breath smells like hot dick cheese
Jeff: Man have you talked to Shelby today?
Toby: No, why?
Jeff: Dude, she had mad Caterpillar Dragon’s Breath.
You don’t know if it is a vagina caterpillar until it turns into butterfly