John Hancock 

The act of of cumming on your partner's back during sexual intercourse, then signing it with a sharpie.

Last night I gave Jane the ol' John Hancock.

John Hancock by Nav23 April 17, 2011

John Hancock 

The act of dipping one's penis in ink or paint and then slapping someone in the face with the inked/painted penis and leaving one's mark.

Jason: Haha, look at Joey.
Brendan: I know, Derek gave him a nice John Hancock last night.

John Hancock by It's Poop Again August 13, 2011

John Hancock 

When a male ejaculates on a female's body spelling out his name in the process

Rich John Hancocked his girlfriend Becky in the coat room last night

John Hancock by Jackalope Joe August 31, 2007

john hancock 

when you pull out during anal sex and sign your name on their back with your poopy dick.

Don: You feel so good inside my ass....lets do this tomorrow...actually, lets get tatoos together.
Steve: I love you too, so for now I will just give you the john hancock.
Don: What is that?
Steve: Its when I sign your back.
Don: With what?
Steve: My dick.
Don: thats kinky. uh ah uh ah.....dont hurt me.

john hancock by pbrgirl September 28, 2005

John Hancock 

A man who masturbates on the toilet

Girl1: my boyfriend hasn't had sex for awhile and he has been in the bathroom more often
Girl2: mm gurl yo man is either a John Hancock or he cheaten On u

John Hancock by C0mm0n s3ns3 July 23, 2018

John Hancock Academy

A place where the rednecks and chaw boys go to school maybe some whores but who cares. The bathrooms don’t work nor does the ceiling keep water out. Piece of shit place

John Hancock Academy is the worst school in America

John Hancock Academy by Leroy Gibbs Sr. December 13, 2018

John Hancock Academy

A place for the following

• whores

• chaw boys

• rednecks

• autistic

John Hancock Academy is the worst school in America

John Hancock Academy by Leroy Gibbs Sr. December 13, 2018