Top Definition
When you put on a condom for the first time and upon placement, you instantly achieve an erection.
Guy 1:Can I ask you a personal question?

Guy 2: Sure, go ahead.

Guy 1: Did you get instacash the first time that you tried on a condom?

Guy 2: Yeah, doesn't everyone?
by Not Op January 23, 2014
6 Words related to instacash

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