Spark Plug

A Spark Plug is a device that ignites the Air-Fuel mixture in an engine chamber causing combustion and piston movement

Arvin: my car had trouble starting so I changed the Spark Plug
Matt: did it fix it?
Arvin: yeah, now it runs and starts smoothly

by Wooferine January 25, 2021

spark plug

Another name for a man's testes.

I was hoping to get lucky today, but my spark plugs are misfiring.

by jammyman December 31, 2009

spark plug

(verb) when a sparky dances up on you, bends you over, and grinds your brains out

I was spark plugged last night and kind of liked it.

by Mista Mistaaa May 29, 2010

Spark plug

When you insert a rod of tinfoil in your urethra, and proceed to insert your erect penis in a microwave.

Dude, after I lost that bet with Cassie she made me do a spark plug. I accidently set an African orphanage on fire.

by sdascoli October 19, 2017

spark plug

Another term for a tampon. Also may be refered to as a "plug."

"Honey, I gotta go buy some spark plugs...."
(Before sex...)"Honey, let me take out my plug first! "

by Crickett6969 June 15, 2008

spark plug

A small amount of drugs (any drugs) that is passed in small paper bags out of fake mechanic shops.

I need to go to H&H Auto for a spark plug.

by oneeyelefty May 19, 2015

Spark Plug

A spark plug is an electrical jumpstart to a rad brromance on an electric night.

Jim and Matthias were foolin' whereabouts a spark plug made something akin to a big bang I reckon

by Figure896 September 29, 2019