have/take a butcher's

have a butcher's

have a look. British informal
Butcher's comes here from butcher's hook , rhyming slang for ‘look’.
See also: have

have/take a ˈbutcher’s

(British English, slang) have a look at something: Come over here and have a butcher’s at this!This phrase comes from rhyming slang, in which butcher’s hook stands for ‘look’.
See also: have, take