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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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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
via giphy
by ecogoth December 30, 2020
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