"Swearwolf" n. A person who doesn't typically
use profanity, who when drinking or when around others who
curse often, transforms into a mouthed
sailor.
Joe: "Woo party night boys, I fuckin
love beer, this shit is the best"
Dave: "Whoa, whoa, whoa, slow down there Swearwolf, didn't you just come from a church function?"
Mike: "Yeah seriously
Joe, you're being a total Swearwolf right now"