What is Bonerpants?
1.
girls pants worn by guys(emo kids). given the name for being so tight that it is clearly visable of when the emo kid has a boner. There for they are bonerpants
Ben: haha your wearing bonerpants
Justin: No, im being emo for halloween
Ben: yah but there bonerpants
Justin: well at least im not wearing a bra
See
2.
A perverted guy who wears short pants in public and letting everyone easily spot his erection
Karl is a bonerpants,i dont socialize with him anymore
See
3.
Pants that make it look like you're sporting lumber.
I bought these jeans last week, but they were bonerpants, so I don't wear them anymore.
See