verb, slang ·Uncommon ·College level

Definitions

Verb

1. 1
   To explain something in a condescending manner to a childless person, presuming that childless people have a lower social status or judgement skills. Canada, US, informal

Etymology

From mom + -splain, after mansplain.

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