Top Definition
A obsessive compulsive disorder which is when a person (generally a guy) that tags all the females on facebook around their crotch area.
Sophie: I was wearing that tight aerobics suit when tjark took that picture that later he crotchtagged me on facebook.

Tatjana: Yes, he is such a perverted crotchtagger but thats what u get for wearing that tight stuff as a joke.
by TMTMTMTMTM June 03, 2009
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