Top definition
the action at which some one, who is nervous, clenches their butt cheeks in anticipation of a specific anxiety/nerve inducing event. -Walking is sometimes difficult, although it does make your ass look out of this world.
Bob:"Hey Todd, how's it going"

Todd: "Not so good, I have a huge presentation today and I have a serious case of TBS,I'm so nervous."

Bob: "Ya you are walking pretty funny right now, but your ass needs space boots, cause it's out of this world."

Bob: "Wait, what's TBS?"

Todd: TBS: Tight Bum Syndrome.

Bob: "Oh ya, that happens to me all the time, actually it's happening right now, give it a feel.
by canadiangirl237 November 15, 2011
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Jul 7 Word of the Day
When you're being horny (especially around friends) and as a result shame ensues.
Friend 1: "Aw man, I could totally fuck a catgirl right now.."

Friend 2: "That's it, you're going to horny jail."
by Blysterz October 19, 2020
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