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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?
by June 14, 2012
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