Tiger Shrimp

This is when your significant other , who is a male, is cheating on you. He can't keep his hard on and it begins to feel and look like a jumbo shrimp. It is also a reference to the cheater, Tiger Woods. Wood being your lover's woody which is shrimp-like becuase he's sleeping with someone else.

Friend: "My man can't keep it up these last few months."
BFF - "uh, Oh .....hope he's not with someone else, no one likes a Tiger Shrimp".