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.