A word used to replace a word that you don't know. "Doohickey" and "thingamajig" are equivalents.
You just push the button on the watchamacallit, then it's ready!
by th100 May 27, 2010
Get the watchamacallit mug.
A word to say when you can't recall the word you require.
Ohmygosh! Have you ever seen or been to... *click fingers* uhhh..... watchamacallit?
by jessklara August 27, 2011
Get the watchamacallit mug.
The hershey candy bar with the biggest frikin name ever. They must've had some real good ideas on the name thinking this one up.
Hershey board meeting:

CEO 1:So do we have any suggestions for this new candy bar. No?, well lets put on our thinking caps guys, because this is one hard nut to crack. Its more of a watchamacallit?
by NateK July 10, 2005
Get the watchamacallit mug.
Tried to put that watchamacallit on the you now and it didn't work
by Obmas January 31, 2017
Get the Watchamacallit mug.
Ain't got no how whatchamacallit is a phrase scrawled on the side of a wall by Kurt Cobain In 1985

He later got arrested after writing it.
John: Did you hear that Cobain was arrested for drawing Ain’t got no how watchamacallit on a wall?

Fred: No I didnt, that's crazy!
by Jack Koffe June 11, 2022
Get the Ain’t got no how watchamacallit mug.