# nut up

> English word · Verb · IPA /nʌt ʌp/

## Definitions
1. To show courage and hide one's apprehension.

## Etymology
From nut + up (influenced by expressions like "man up" or "shut up"; "nut" refers to testicles, symbolically implying being more manly).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/nut-up