A fork of Rural Dictionary
A salute. The o is the head and the 7 is the arm. This is used in Twitch a lot.
Any Dream SMP fan: *sees L'manburg flag* o7 o7 o7 o7 o7 o7 o7 o7
The British way of saying bruh. But more memeable.
"A proper bruv to all me mates, innit?"