Havin' a Beth 

Havin' a Beth refers to the act of struggling to perform any act, or battling in any general situation. The act primarily involves the consumption of alcohol such that general motor control and speech is hindered.

God, she was really Havin' a Beth!

Havin' a Beth by Miguava May 20, 2013

Havin a Tyler

Havin a tyler is when you are super pimp or a know it all.

The other day i was havin a tyler. The bitches went wild!

Havin a Tyler by pimpstaschnapps October 7, 2010

Havin' It Large 

Mostly used when expressing yourself in reference to alcohol.
Means you're enjoying yourself/ having a good time

Where's Clare? Ahh shes having it large with a lad.

Wht did u get up to on sat?
I had it large

Mateeee im Havin' It Large tonight!

Havin' It Large by Lizzieeeeeeeeeeeeeeeee May 1, 2007

havin’ it 

Euphemistic slang for having sex.

Later on I be havin’ it.

havin’ it by Dr Bunnygirl November 17, 2019

Havin-swithen-bank 

To 'have' ones banjo string snap while 'banking' one 'within' a girl (or boy).

A case of St. Swithin

Origin
St. Swithin (or more properly, Swithun) was a Saxon Bishop of Winchester. He was born in the kingdom of Wessex and educated in its capital, Winchester. He was famous for building churches as well as enforcing circumcision within his congregation.

Hey up, my penis is leaking puss after I was Havin-swithen-bank, I need to wrap it up.

Havin-swithen-bank by scampy the dog December 14, 2010

HAVIN THANGS 

Gettin that money, cars bitches,clothes,jewels, being able to enjoy the finer things in life

"Im young & rich talk a lot of shit i guess beacause im havin thangs..

HAVIN THANGS by G Magic June 2, 2007

Havin' a goo 

Seemingly a creation of Mike O from the YouTube channel "That Chapter"

Taking a gander.

Havin' a squiz.

Looking.

Being a sticky beak. (i.e. sticking your nose where it doesn't belong)

What happened next is probably predictable based on the title, but "let's have a goo".

Ok! Looks like we are "havin' a goo".

Havin' a goo by @pgoughy June 28, 2020