1 definition by DoraTheRapist

JMS is used mainly on the internet, and is simply an abbreviation for 'Just Making Sure'.
Noob1: Hey, make me a sammich.

Noob2: Did you say you wanted me to make you a sammich?

Noob1: Yeah.

Noob2: Alright, JMS.
by DoraTheRapist August 11, 2010
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