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2.
When something isnt happening in your favor.
"My phone died last night, I was losin'!"
by SlimCutta May 02, 2007
 
1.
Lo-SIN: To be caught stealing food from the workplace.

For example: Carlos takes 3 pieces of chicken, does not pay for them, and he gets caught; therefore he was 'losin.

Origin: Carlos did steal some chicken. This word is derived from the end of his name.
Chris: dont steal that cake.
Keith: Yeah, If i catch you 'losin, you'll get fired.
Rich: aiight.
by g-diggity June 27, 2006