when you hold back an impending crap long and hard enough that it actually creeps back upwards, buying you a little more time before either making it to a bathroom or shitting your pants
Carl suddenly had to take a shit on a floatplane but there was no bathroom, so he clenched up tight and forced an upturd.
A derivitave of Utard, kind of like retardation, but applies to the status quo.
Also applicable: utardism (what happens to children who grow up in utah) and utarded (when all hope is lost of them ever becoming normal or intelligent).
A bad driver with Utah license plates. Also, anyone from Utah who acts like an idiot, or is a little behind in current culture/slang because Utah is so far inland from California.
Can you believe she is still using the word "gnarly" and wearing acid wash jeans like they're the latest thing? The biggest problem with Utah is that it's full of Utards!