a hard nut

a hard/tough nut

someone who is difficult to deal with because they are unpleasant or very determined to get what they want People don't tend to mess with Sue. She's a tough nut.

Common Names:

Name	Pronounced	Usage
Cyriacus	-	Late Roman
Keysha	-	African American (Rare)
Mykhaylo	-	Ukrainian
Serena	[sə'ri:nə]
Stefani	STEF-ə-nee	English
Ackerman	['ækəmən]