the sound of a huge shit hitting the toilet water after 5 days of constapation; a splash that hits your anus after dropping a terd
Maia wished she could go kerplunk right now but she's had one too many fudgepacks - it's stuck up there!
by Chris & Maia July 13, 2002
A great Green Day album. It ties in with the other cd "dookie" because, as lead singer Billie Joe says, "When you take a s--t in the toilet, that's the sound it makes is kerplunk."
I picked up the Kerplunk album on vinyl yesterday at the music store.
by Haushinka November 18, 2003
Green Day's second album made after John Kiffmeyer left for only god knows after 1039/Smoothed Out Slappy Hour came out. Also awesome has one of Tre's many songs on it.
~song~
Dominated Love Slave
me: I have every CD except Kerplunk I mean yeah I didn't buy 1039/Smoothed Out Slappy Hour but I do have all the songs ^-^
Billie: well you want me to give you a copy?
me: SURE!
~I get Kerplunk and is happy ^.^~
by The CD Kerplunk ROCKS! September 02, 2006
The second underground-label album by pop-punk group Green Day. Released in 1992.
Person 1: Have you heard that old Green Day album Kerplunk?
Person 2: Kerplunk? Never heard of it.
Person 1: oh, ok.
by Lizz|Is|Pyro August 25, 2006
The noise your poop makes when it goes in the toilet.
That turd made a big kerplunk
by Mr_Chuckles July 31, 2003
A game where one climbs on top of the stall walls in a public restroom and takes a shit while aiming for the toilet below. Named for the sound a turd makes after falling 6 feet into a toilet.
Don't use the middle stall... I tried a kerplunk in there earlier and totally missed!
by JB123456 October 14, 2013
When five men have intercourse with five seperate partners, or perform dual penetration on a shared set of partners with one "odd man out", using one shared latex rubber glove as a prophylactic. The term is derived from the Mattel brand game, Kerplunk, which also involves many rods crossing, and balls dropping.
This weekend, Tom, Dick, Harry, Barry and I kerplunked with Susie, Mary, Annie, Liz, and Frank.
by Idle February 10, 2006

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