special shower

When you go into the bathroom and come back an hour later suspiciously not having showered at all. There is an implication of jerking off in the bathroom, yet it's subtle enough to be used to embarrass people without eavesdroppers getting any ideas.

guy 1: dude did you just go and have a special shower? You were in there for ages!
guy 2: what?! No! I swear I didn't!

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