We found 3 dictionaries that define the word screw up one's courage:

General (3 matching dictionaries)

1. screw up one's courage: Merriam-Webster
2. screw up one's courage: Dictionary.com
3. screw up one's courage: Wiktionary

Definitions from Wiktionary (screw up one's courage) ▸ verb:  Synonym of pluck up one's courage ▸ Words similar to screw up one's courage ▸ Usage examples for screw up one's courage ▸ Idioms related to screw up one's courage ▸ Wikipedia articles (New!) ▸ Words that often appear near screw up one's courage ▸ Rhymes of screw up one's courage ▸ Invented words related to screw up one's courage