Greggoing 

Greggoing eg. The Greggo
A sexual pose in which a pe teacher stands head on to the audience with one leg elevated above the knee as he rocks back and fourth to simulate a stretch while addressing an audience

I can greggoing like a pro

This will aplease the greggo

Watch yourself looking like that. Greggo will get you

Kermit1234

Greggoing by Kermit1234 July 13, 2016

Old Greggin' 

V. When some douche bag is hitting on a woman and being really creepy about it, that douche bag is "Old Greggin" that woman.

Yeeeaaaah, he's Old Greggin'.

Old Greggin' by Bender1851 May 29, 2008

Gregging 

'Gregging' is the process by which an individual masturbates into a hat. Though this is its definition, it can also be used to describe an individual resting his penis in a hat, and/ or using the hat to masturbate. To 'Greg' someone is to steal their headwear, and perform one of these heinous acts using it.

Example 1)
It has commonly been used to make amusing adjustments to songs:
"Gregging,Gregging you... filling up your beret with my penis"

Example 2)
Ray: "Man, what the fuck is up with your hat?"
James: "you wont believe it, Some punk gregged it last night at the party!"
Ray: "Ouch, dont worry about it, weve all been there before"

Example 3)
Mark: "Hey, look at that blokes hat, you want to greg it?"
Bryn: "Hell yeah!, ill go first"
30 minutes later
Man with Hat: "Bollocks"

Gregging by Portlypeasent February 26, 2009

Greging 

1. To Greg
2. To present ones posterior in the manner of Dr. Greg Ones (Doctor of Geology)
3. Or, to rub ones nipples while engaging in conversation
4. To order a club sandwich in a restaurant which specializes in BBQ products

So the other day at the club, this girl was totally Greging to me.

Greging by fullmetal August 22, 2012

Gregging Off 

When you masturbate using inanimate objects.

Yesterday I caught my dad gregging off with the dishwasher.

Gregging Off by _GREGG____ November 22, 2017

Greiging 

Getting utterly shitfaced, generally way too early in the night, so much so that you break into impromptu acapella show tunes, loudly, with a likely outcome of very limited recollection the next day.

Omg I was Greiging last night - and soo out of tune - but it was worth it. I’ll be Greiging again tonight!

Greiging by RicArdoardoardo May 26, 2018

Gegging in

Scouse Orig.

The act of intruding, joining in, becoming part of something which doesn't concern you & of which you have insufficient knowledge.

Jannette: I've always found it works best if you wash it first..
Fleur: Stop gegging in, no one asked you!

Gegging in by Angel_k November 25, 2010