From Longman Dictionary of Contemporary Englishtread on somebody’s toestread on somebody’s toesBritish English, step on somebody’s toes American EnglishOFFEND to offend someone, especially by becoming involved in something that they are responsible for → toe
Examples from the Corpus
tread on somebody’s toes• I danced rigidly with Giacomo, kicking his shins and treading on his toes.• But I don't want us to tread on each other's toes.• Don't know the rules, don't want to tread on any toes.• Danny's filthy fingernails were digging into his neck and his one foot was treading on Henry's toes.• She has a sharp cutting edge and woe betide the Europhile who treads on her toes. 