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When you are doing your partner from behind, usually doggie style, and you "drop" your thumb in and out of your partners a-hole.
I was doing my girlfriend doggie style the other night and I gave her the ole Thumb Drop!!
by usernamemyazz January 10, 2014
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May 3 Word of the Day
Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)
Monica: Oh yay! I made a new mutual today because we started following & talking to eachother on twitter and we like eachother (so it seems).
by qtheresurrection March 25, 2015
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