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1. whatchamacallit
An object that you dont know the name of.
Yes he did wear a whatchamacallit.
2. Whatchamacallit
A word used when the actual name of the object in question will not come to mind. Very versatile but often very vague. It is derived from the phrase "what-you-may-call-it" which can be found in T. H. White's The Once and Future King.
Claire- "Hey, Adam, hand me the- the- you know, the whatchamacallit."

Adam- "The what?"
3. Whatchamacallit
a candy bar, duh
im going into the store to buy a whatchamacallit
by james Sep 22, 2003 share this
4. whatchamacallit
when you forget something and you don't know what to call it!
"Isn't he, uh, you know, whatchamacallit?" "Gay?"
5. Whatchamacallit
NOUN - A term, used to replace a noun when it won't come to mind.
I went to the restaurant and ordered the plate with shrimp and the other side...whatchamacallit.
by Enrique Perez Nov 16, 2003 share this
6. Whatchamacallit
Something you call when you don't remember its real name.
"Oh hey! Isn't that a whatchamacallit?"
by *LisaBee* Aug 25, 2003 share this
7. whatchamacallit
A fast and easy way to say "what do you call it?" Can be used to describe a person,place or thing.
"Hey, you know were i can get a soda?"

"Yea, whatchamacallit is selling them at her locker."
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