The story
Six is slang for "rear; behind", which is itself an ellipsis of six o'clock; see more at the entry for six.
Etymology from Wiktionary, CC BY-SA 4.0.
have got someone's six
Today it means: Synonym of have someone's back. Full definition →
Today it means: Synonym of have someone's back. Full definition →
Six is slang for "rear; behind", which is itself an ellipsis of six o'clock; see more at the entry for six.
Etymology from Wiktionary, CC BY-SA 4.0.