Abbreviation for "It's Tell Me Why, Puppy?" - A cliche from the time when women in the 1980s felt bad about dumping their loser boyfriends and gave them pity sex on occasion.
She'll like you more if you play Motley Crue when she gets in the car, that might at least make her feel bad for you and give you an ITSTMYP.
by rickyukon October 6, 2020
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