Referring to either the act of sex or calculus depending on the circumstance. Sometimes purposefully ambiguous.
Guy 1: I did a lot of rigorous activities over the weekend.
Guy 2: Really?
Guy 1: Yeah, but I'm still screwed for the calc midterm.
Guy 2: Really?
Guy 1: Yeah, but I'm still screwed for the calc midterm.
by knitman April 1, 2009
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