ATM is an abbrieviation that has several common meanings:

1: At The Moment: Used when refering to one's current temporal circumstances.

2: Automated Teller Machine: A machine that dispenses physical currency and performs the role of a bank teller.

3: Ass To Mouth: A sexual act commonly featured in hardcore pornography where a penis, sex toy or other implement is removed from a person's anus and re-inserted into their mouth. Not to be confused with anulingus.
1: "Sorry, I'm busy ATM."

2: "There was quite a long queue for the ATM."

3: "He pulled out of her asshole, and she turned around to clean off his member with some ATM."
by kPMg_O4 August 05, 2011
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ATM is the acrynom for "At The Moment." People usually use it during a chat conversation or email.
EXAMPLE 1:

Hola_girl: Hey, what's up?
Smiley_girl: Sorry, can't talk. Studying for a test ATM.

EXAMPLE 2:

Hola_girl: Can I come over to your house?
Smiley_girl: Sorry, I am sick ATM.
by Panda_girl April 27, 2009
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arse to mouth (the reason he fell in love with me:))
guy- dude she let me fuck her arse then sucked my cock straight after

guy1- wtf !!! she did atm ??? ....sweet
by nette231 September 09, 2011
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When it comes to sex " Ass to Mouth"
When a man says, " do you do "ATM", or give me some of that "ATM" baby....
by Mrs. Thickness December 07, 2015
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