When you're at a bar or night-club and you run out of your drink and have no money to buy a new one, so you use a straw to steal sips from other peoples' drinks while they aren't paying attention.
"I only bought a couple of drinks, but I was mosquito-ing drinks all night, so I was feelin' pretty good!"
by AHay November 21, 2009
(Sexual act) To Mosquito, is to roll ones tongue, inserting it into either one of a female’s rear orifices, and suck through your tongue as if you were a mosquito.
by DrBlueBalls April 19, 2020