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1.
Something. Anything!!
Give me that thingymabob! *points to something*
by Hal Redbrick July 24, 2003
 
2.
1. something you are looking for or need but you can't rememner the name of it
do you know where that thingymabob went to?
by can't_live_without_you June 18, 2009
 
3.
Thingymabob is an object that cannot be described or named and is referred to as a thingymabob.

thingymabob.net is a blogging website to do with unknown subjects or objects.
"I have a thingymabob in my pocket"
by djayzere April 03, 2009