Checking out a chicks ass, specifically while on an escalator or similar situation (so you are 'following' it). Also, can include the act of positioning yourself just behind a chick on the escalator (following close).
Johnny was tailgazing all the way up the escalator at Wheaton, did you see the chick standing in front of him?
by Lacoste - DC Metro Tailgazer April 24, 2009
To gaze upon a fine lady's beautiful posterior. The inability to look away from a fine piece of ass.
I was walking to the train today and the tailgazing was fantastic! It's great to be a tailgazer on a day like today.
I hate going out with my boyfriend he is such a tailgazer!
I can't believe she is marrying him, doesn't she know how much of a tailgazer he is?
I hate going out with my boyfriend he is such a tailgazer!
I can't believe she is marrying him, doesn't she know how much of a tailgazer he is?
by tailgazer.com June 15, 2012