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Where you are so incredibly bored your mind wonders and your trousers become a tent
He stood up in geography and his shlort made an apperance through his broken zip, he must have been bored stiff!
by PFD May 02, 2006
When a guy is so bored he starts talking to girls to fuck.
Jeff "Fuck dude i'm bored stiff!"
Amy"Awh yeah wanna come over?"

*Jeff goes to Amy's house and uses his stiffy on her*
by whambamthankyoumam.. February 26, 2011