Butthole Airbag 

A safety precaution taken by men while involved in a devils threesome (2 guys, 1 girl) to prevent anal penetration. The man will tuck his nutsack between his butt cheeks protecting his cornhole from from intentional and inadvertent penis to brown eye contact.

Good thing i had the old butthole airbag on the other night that fag Justin went for my brown eye.

Butthole Airbag by gbv.3.0 March 22, 2012