Itch to scratch 

1. A slang phrase for female masturbation. (When a female masturbates the hand formation looks like they are scratching an itch.)

I think ima go home I have an itch to scratch.

Itch to scratch by Anon76152098 October 10, 2008

tough itch to scratch

Something hard to stop. Like when you begin to scratch and you cannot stop.

When you are a serial killer like me, it is a tough itch to scratch, once you got it.

tough itch to scratch by Duckyduck November 26, 2013

to scratch the old itch 

kind of joke. It means to satisfy the need to sex.

I just want to scratch the old itch.

to scratch the old itch by amar90 September 10, 2010

to scratch the old itch 

It means to engage into Sexual intercourse

Dude my ex came by the other night just to scratch the old itch

to scratch the old itch by itchscratcher August 12, 2011