[cut to the quick] {v. phr.} To hurt someone's feelings deeply. […]

[cut up] {v.} 1. {informal} To hurt the feelings of; wound. […]

[dog-eat-dog] (2) {adj.} Ready or willing to fight and hurt others […]

[don't cry before you're hurt] See: [CRY BEFORE ONE IS HURT]. […]

[draw blood] {v. phr.}, {informal} To make someone feel hurt or […]

[eye for an eye and a tooth for a tooth] A […]

[for fear] Because of fear. * /He left an hour early […]

[get back at] {v.}, {informal} To do something bad to (someone […]

[get even] {v.}, {informal} 1. To owe nothing. * /Mr. Johnson […]

[go into a tailspin] or [go into a nose dive] {v. […]