have back at (one)(redirected from have back at them)
have back at (one)
obsolete To punish or exact revenge on one in retribution for a past wrong. (The phrase "get back at (one)" is now used in modern English.) She felt the sting of his rejection, but she swore that she would have back at him by some means or another.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.