throwing knuckleballs

Throwing knuckleballs: code for camel toe
Normally used in a situation to warn a friend to dodge the possibility of having to get an eye full of camel toe. The name knuckleball refers to the resemblance of a camel toe and a the way a baseball players fingers look when throwing a knuckleball.

Scott: Watch out she's throwing knuckleballs

Tom: Thanks for the head's up