A cross between motorboating and tea bagging. When two guys stand close together with legs spread, and a third person gets under them and motorboats their ball sacks.
Wow, that was a crazy party last night! I think I even ended up motor bagging two guys in the basement!
When you stuff your balls into her back door and soft serve her poonanie at the same time. That's the full airlock.
Dude, I put her in a full airlock last night. Can't believe I got the nads in there. Took some effort!