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1.
Acronym for Sapping My Will To Live.

Causing great emotional or mental fatigue. Used to describe situations that are both inescapable and incredibly boring, especially when used in counterpoint to an attractive alternative.
Connor: Hey Paul, What's up?

Paul: Beautiful day out.

Connor: Yeah. We're all ducking out early for drinks on the patio with the girls from Marketing. Want to come?

Paul. Can't. Boss has me attending a review seminar on building code changes. Can't get out of it. It's SMWTL!
by ghettodweller14207 March 11, 2010