noun, slang ·4 syllables ·Moderate ·College level

Definitions

Noun

1. 1
   A thing or person whose actual name is unknown or forgotten. slang
2. 2
   something unspecified whose name is either forgotten or not known wordnet

Synonyms

All synonyms

whositchingaderachummydealydingbatdingus

Example

More examples

"What exactly is the purpose of this thingamabob?"

Etymology

Alteration of thingumbob: obsolete thingum (from thing) + bob.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.