English▸ exclamation used to express assent to a superior:
‘Do you understand me?’ ‘Yessir!’.
▪ North American English used to express emphatic affirmation:
yessir the food was cheap.
▸ verb
( yessirs, yessirring, yessirred)
[with object] defer to (someone) as a superior: you're used to people yessirring you left and right.
– ORIGIN early 20th century: alteration of yes sir.