1 definition by 5th dentist

Top Definition
Abbreviation for "Outta Sight, Outta Mind". Indicating that interest in someone or something disappears when that person/thing is not present.
What's up with him? Yesterday he was so into me. Today it's OSOM.
by 5th dentist June 11, 2009

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