Whatsisname

noun, slang

noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    A placeholder for the name of a man whose name the speaker cannot remember. colloquial

Etymology

Derived from running together the words in the phrase what is his name.

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