The act in which an instant messenger "friend" will IM another only once a month (or longer in between) with a link to a Youtube video that is generally not as funny as the sender thinks, subsequent to which, he or she will disappear and ignore the other's response.
Shari never talks to me, but every six weeks or so, she'll "Drive By Youtube" me with some unfunny crap about a baby singing or playing guitar. Then I try to respond and she's a ghost.
by DB Verizon February 15, 2008
Get the Drive By Youtube mug.