Top definition
Being constipated due to being forced to hold back to keep from shitting your pants... And class just started.

Not to be confused with "Vapor Lock "
Louis: Hey Jason! What do you say about going out, have a beer or two?

Jason: I can't tonight. I got horrible stomach cramps because I was afraid I would "Shart" in gym class. I think I held it a little too long and now I have a "turd lock"."
by matterri April 23, 2017
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