Someone who takes a joke way too far, or a situation.
See how messy that guy was he took it too far toni.
Going to the extreme ends in regards to the normal banal brackets of common lifestyle changes.
Person 1: Hey, did you hear Sonny moved to a rundown place in downtown Harare without AC, refrigeration, or any household essentials.
Person 2: He went too toni, man....
Person 1: Yeah, you never go too Toni.