1. my bad - Interjection
2. my bad - Phrase
my bad
(colloquial, idiomatic) My fault; mea culpa.
Yes, I realize the car isn't supposed to be parked in the heirloom flowerbed. My bad.
“My bad, fam, not my proudest moment. Source: Internet
My bad, did not test positive! Source: Internet
"My bad I read somewhere that you did," the fan wrote back, "that's great to hear." Source: Internet
My bad that was," said the fan account. Source: Internet
He wrote in 1931: "My bad spelling in youth, up to the age of about 18 or 19, is connected with the whole of the rest of my character (my weakness in study)." Source: Internet