A strong, determined person who is not easily intimidated, discouraged, or defeated. Our principal was a rather petite lady, but she was one tough customer! She had a difficult childhood, but it made her into a tough customer later in life. I wouldn't mess with that guy, he's a pretty tough customer.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
tough customer someone
who is difficult to deal with. Some of those bikers are really tough customers. Walt is a tough customer. Just keep away from him.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
a tough ˈcustomer/ˈcookie(informal) a person who knows what they want and is not easily influenced by other people: Self-confident, ambitious and positive, Paula is a tough cookie who is bound to do well.
Farlex Partner Idioms Dictionary © Farlex 2017
n. someone who is difficult to deal with. Bruno is a tough customer. Just keep away from him.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.