Top Definition
n. an estimate of how 'sketchy' or questionable something is.

v. to estimate how 'sketchy' or questionable something is.

undersketchtimate- to underestimate the level of 'sketchiness'
Bob- Nah man, that dude is straight.

Joe- Are you serious, bro? That guy is like 45 years old, has the scraggliest beard, and is clearly a meth dealer. You have the worst tendency to undersketchtimate.
by sketchyboy24 March 14, 2010
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