Hammerhand 

The act of master-baiting in which the user's hands makes a motion similar to a hammer hitting a nail.

Johnny hammerhands to internet porn.

Hammerhand by N1337 November 25, 2009

hammerhead shark 

The most bad-ass animal ever created

God: We need to make something great.
Angel: How about a shark that can beat the shit out of people without biting them, it’s called a hammerhead shark
God: That defeats the purpose of a shark but ok.

hammerhead shark by SpeedySmith July 26, 2018

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

Slide Hammer Hand Job 

Similar to that of a regular handjob, the differnce being that the person giving the handjob uses a slide hammer motion. Starting slow at the tip and then stroking down with extreme force until being stopped by pubic bone. This takes place repeatedly until the person receiving either passes out from pain or a bloody ejactulate occurs. Hopefully both. Slavic in orgin.

You guys hear about Kurt? He spent all day in the ER cause his Slavic girlfriend gave him a wopper of a Slide Hammer Hand Job. He won't be riding his bike for a while.

Slide Hammer Hand Job by LHC***** March 26, 2010

The Hammerhead Maneuver

The act of splitting the head of the penis in half and then proceeding to just ram it in there

She loved when he used The Hammerhead Maneuver

The Hammerhead Maneuver by COClover69 May 25, 2014

hammerandfail 

(This person used to be @holyreusedjokeonawebtoon) This person is so amazing,funny,kind and one of the BIGGEST Matt simps i've ever seem. (I still love them tho B) ) They make me so happy :)

hammerandfail is so funny!

hammerandfail by Eddsworldisamazinglel June 19, 2021

hammerhead 

a stupid or incompetent person.

john is such a hammerhead

hammerhead by killajem6000 July 16, 2017