Top definition
Tested, played with, fucked over, messed with, etc.

This applies to any situation in which you can be Tested, played with, fucked over, messed with, etc.
Alyson: I think we should break up, I like another guy.
Jon: You said you'd always love me, you said you wanted to marry me.
Alyson: I know, but I lied.
Jon was Lab-Ratted

Jeff(To Jim):How was your week off?
Jim:I didn't get to leave till tuesday and had to come in thursday to do books.
Jeff: Wow, your boss lab-ratted you.
by PHS2HC2009 May 28, 2009
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