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2.
Acronym for Diarrhea Upper-Lip Sweat.
The perspiration that accumlates on the upper lip while taking an intense shit (normally of the diarrhea variety).
"Hey Eric, why is your lip all sweaty? I bet you were just out golfing."
"Nah, I have DULS. I was just crapping out Taco Bell for the past 10 minutes."

Andrew's DULS got so frequent that he brought a tissue to the bathroom every time.

by Steven Minio November 23, 2005
 
1.
dul
Cool; dope.
(It's ironic, get with the times, fool)
Alice: This party is so dul!
Bob: Totally dul!
by lordofdance January 29, 2014