A bruise, commonly found on the knee, which is procured during the game of trust. It almost all cases, it is the fault of the trustee, and not the truster.
1) Their first date must have gotten rowdy, as the next day she had a trust bruise.

2) "Did you see Sarah last night? She drank one too many pink twinks and ended up with a trust bruise!"
by expert_pronunciator January 26, 2010
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