can't punch (one's) way out of a paper bag

Extremely weak, ineffectual, or incompetent. You want to fight me? You can't punch your way out of a paper bag! Don't assign that project to her, she couldn't punch her way out of a paper bag!

See also: bag, of, out, paper, punch, way

Common Names:

Name	Pronounced	Usage
Kazuo	kah-zoo-o	Japanese
Giselle	zhee-ZEL (French), ji-ZEL (English)	French, English (Modern)
Omolara	-	Western African, Yoruba
Alvin	AL-vin	English
Godwin	['gɔdwin]
Tarana	-	Azerbaijani