Top definition
Stands for" And Then They Made Out". Generally used in situations with high sexual tension. Not usually used when people actually do make out.
Did you see Hillary and Obama in the Debate last night? They were so ATTMO!
by Hatalie February 03, 2008
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug