1
general::
Phrase(s): gun for someone
1. Lit. to seek one out to shoot one. • They say that Tex is gunning for the sheriff. 2. Fig. to seek someone out in anger. • The boss is gunning for you. • I think that Walter is gunning for me.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
1. Pursue relentlessly so as to overcome or destroy. For example, He was sure they were gunning for him and asked for police protection, or The senator felt that the reporters were gunning for him with that article about his brother. [Slang; late 1800s] 2. Go after in earnest, try hard to obtain. For example, He's been gunning for a raise all year. [Slang; mid-1900s]
American Heritage Idioms