Sex. Popularized by the song of the same name by T.Rex. Specifically refers to penetrating deeply enough to hit the cervix.
My girl doesn't like it if I bang a gong too much, 'cause it makes her walk funny.
by T-Rex-a-Lot September 1, 2007
Well you're dirty and sweet
Clad in black don't look back and I love you
You're dirty and sweet, oh yeah
Well you're slim and you're weak
You've got the teeth of the hydra upon you
You're dirty, sweet and you're my girl
Get it on, bang a gong, get it on
Get it on, bang a gong, get it on
Well you're built like a car
You've got a hubcap diamond star halo
You're built like a car, oh yeah
Well you're an untamed youth
That's the truth with your cloak full of eagles
You're dirty, sweet and you're my girl
Get it on, bang a gong, get it on
Get it on, bang a gong, get it on (oh)
Well you're windy and wild
You've got the blues in your shoes and your stockings
You're windy and wild, oh yeah
Well you're built like a car
You've got a hubcap diamond star halo
You're dirty, sweet and you're my girl
Get it on, bang a gong, get it on
Get it on, bang a gong, get it on
Well you're dirty and sweet
Clad in black, don't look back and I love you
You're dirty and sweet, oh yeah
Well you dance when you walk
So let's dance, take a chance, understand me
You're dirty, sweet and you're my girl
Get it on, bang a gong, get it on
Get it on, bang a gong, get it on (ow)
Get it on, bang a gong, get it on (ow)
(Get it on)
Get it on, bang a gong, get it on
Get it on, bang a gong, get it on

Get it on, bang a gong, get it on
Get it on, bang a gong, get it on
Take me
For a meanwhile I'm still thinking
by Zatarain’s Root Beer Drinker November 26, 2020
To use an opium pipe. To smoke opium. Ref: Low Life, by Luc Sante 1995
"...users might be reduced to rooster brand or...to a bunk yen, meaning to hang around the den without possessing the wherewithal to bang the gong...(i.e. bang a gong)"
by imposthume October 28, 2015
To Get It On Phrase Made Popular By The Band T-Rex
Hey Cat Daddy You Ready To Hit Up The Bar? Im Bout Ready To Bang A Gong.
by Evasion Romantica December 5, 2006
Literally punching about, going crazy, doing crazy things, hitting on a girl
Tommy it's high time you bang a gong
by bali July 13, 2021