hammerhead sharking 

When a male closes his eyes while undressed and waves their member back and forth, like a hammerhead shark, in an attempt to locate their mate.

Freddy undressed, closed his eyes, and began hammerhead sharking to find Judy through electroreception.

hammerhead sharking by GZX959 December 29, 2015

Hammerhead Sharking 

When two people, at least one being male, have oral sex and the person sucking cannot see the penis of their partner. This is known as hammerhead sharking because a hammerhead shark has eyes facing sideways and would not see a penis sticking out of their mouth. It is also a play on words as "head" is another word for oral sex.

Brown and Roberto see each other in the middle of a sidewalk. They advance toward each other and start with a handshake. "What's up my nigga!" Says Brown. "Hey! I've been doing fantastic. Yesterday evening, my girl and I were hammerhead sharking!" Says Roberto. "Dang nigga!" Exclaims Brown.

Hammerhead Sharking by ThatsjustHowitis April 5, 2019