マウントを()

まうんとをとる
expression
to one-up; to assert dominance; to act superior
1. to one-up; to assert dominance; to act superior over someone
To demonstrate or assert one's superiority over another person, often in a boastful or competitive way. Derived from the martial arts concept of taking the 'mount' position (sitting on top of a downed opponent).
すぐマウントを()りたがる(ひと)がいる。
There are people who always want to one-up others.
学歴(がくれき)でマウントを()るのはやめてほしい。
I wish they'd stop trying to assert superiority based on educational background.
SNSで()らない(ひと)にマウントを()られて不愉快(ふゆかい)だった。
A stranger tried to one-up me on social media and it was unpleasant.

From the English word 'mount' (as in the dominant grappling position in martial arts like MMA and Brazilian jiu-jitsu). The metaphor of physically sitting on top of an opponent became slang for asserting social superiority. A relatively recent expression that became widespread through social media in the late 2010s.

VARIATIONS:

  • マウントを()る: the standard form
  • マウント()り: one-upping (nominalized form; used as a noun)
  • マウントする: shortened suru-verb form

COMMON COLLOCATIONS:

  • 学歴(がくれき)マウント: educational background one-upping
  • 年収(ねんしゅう)マウント: income one-upping
  • 子育(こそだ)てマウント: parenting one-upping
  • マウントを()りたがる: to constantly want to one-up
  • マウントを()られる: to be one-upped (passive)

SIMILAR WORDS:

  • 自慢(じまん)する: to boast, to brag — focuses on the act of bragging; マウントを()る emphasizes the competitive, hierarchical aspect of putting someone else down
  • 見下(みくだ)す: to look down on — directly expressing contempt; マウントを()る often involves indirect or subtle shows of superiority
  • 威張(いば)る: to act bossy, to put on airs — more about authoritative behavior; マウントを()る is more about social comparison

REGISTER:
Casual and colloquial. Very common on social media and in youth speech. Not appropriate in formal or professional settings.