2 definitions by Janness

Assuming shrimp are relatively small creatures, this is where this slang comes into play. This term is relating towards a certain depth of ones buttocks. Mostly meaning small or acute.

A weak, malnourished boy who attempts at acting tough. But when is confronted, seeks shelter in a small corner or space to hide. Implying that means he is surely to be known as, "Shrimp Boy."