1) A male who has an impressive amount of temporary female partners by virtue of coercion or brute force.
2) A Mingemonkey McGee is the placeholder name of a suspect in a violent sexual assault investigation.
1) "And furthermore, the offender used a belt to tie her to the bed. After the assault, the mingemonkey fled as police gave pursuit."
2) "At least 24 victims have come forward (no pun intended) to give evidence of the appearance of our Mingemonkey McGee, whose identity still remains a mystery and whose whereabouts are still as yet unknown."