After a guy sticks his balls into your asshole and pulls them out and lets them dry until theyre brown and crusty
I had a brown-sack after I went in balls deep
When a man puts his ballsack up into your arse, causing a brown-sack (see: brown-sack)
Person 1: My BF gave me an arse ballsack last night!
Person 2: I hope he washed his brown-sack afterward
ding dong dingily dong ding dong ding
ding dong dingily dong ding dong dingily dong ding dong dingily dong ding dong dingily dong ding dong dingily dong ding dong