Am I unreasonable to have no idea what Ben Wallace means? The only Tonto I know is The Lone Ranger's partner, highlight programme for me back in the 50s/60s.
It sounds like it is insulting but Tonto was good, why would you use that in a negative way or am I missing another connection.
I'd normally ask teenage grandson to explain but he's away so hoping MNetters can put me right on this one.