Having it Large 

The phrase 'Having It Large' can refer to many things, the most common use is when referring to something enjoyable, for example: 'I'm having it large later!' - 'I'm gonna have a good time later!'

Although a new modern musical use for the word has also recently arisen where you 'Have it Large' on a variety of instruments by making as much noise as possible but in a melodic fashion, rather than just hitting whatever you can and thus creating what may be described as a 'Racket'...
One of the instruments most widely used for having it large is a Drum Kit, mainly due to its high volume levels and variety of sounds.
Another interpretation of the phrase is to play music as loud as possible.

Student 1: We've just had a Music lesson later, we were having it large!

Student 2: Awesome!

or...

DJ: Lets turn the speakers up tonight and have it large!

Having it Large by The Having It Large Society November 29, 2011

Having it large with the lads 

A recreational activity at the weekend.
commonly related with pulling fit birds and drinking lots of lager.
and eating lots of pork scratchings and kebabs.
and shouting , 'you tosser!'. to coppers.

'alright my son! after i've finished shaggin this bird ill be having it large with the lads!!'

Having it large with the lads by Benjamin (KEEP IT POSITIVE) May 17, 2006

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