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1. PTA
An abbreviated shower or bath that just takes care of the basic essentials ("Pits, tits, and ass"), taken when time or clean water is limited.
"I slept right through my alarm clock...I barely had time to brush my teeth and take a PTA before running out of the house."
2. PTA
The acronym for a quick shower, where someone only washes their Pits, Tits, and Ass(hence the letters in the acronym, hurff durff).
Girl1: Jenny looks like she hasn't showered in days!
Girl2: Ohh No she did a PTA this morning!
3. PTA
PTA typically stands for "Parent teacher association". They help plan school activities. If you can't remember this or what they do, try "(P)arents (T)hat (A)re Bored"
Mom: Hey daughter! Instead of getting a job and being actually useful to my family, I'm going to not supply any income and join the PTA so I can pretend I'm actually doing something with my life!
Daughter: *kills self*
4. PTA
PTA - Pussy to Ass

During Intercourse you take your dick out of her pussy and shove it into her ass really fast.
Man 1: I had so much fun last night!
Man 2: Did you get a PTA?
Man 1: No...
Man 2: THEN FUCK OFF.
5. PTA
Pulled from Thin Air: Making an unsubstantiated guess without any prior experience or knowledge on the subject. Similar to a Wild Ass Guess (WAG), except that a WAG involves at least general prior knowledge before the guess.
This year my sales sales quota was based a bit on last years results, but mostly on PTA.
6. pta
quick wash up...pussy, titties & ass, the only 3 parts u have time to get 2.

Shower, no time, girl, let me do a quick "pta" and I'll be ready to go.
7. PTA
Acronym: Public Tweet of Affection
Randomgirl: @randomguy hi baby i miss you so much
Randomguy: @randomgirl thanks for the obnoxious PTA
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