Definitions for uppityˈʌp ɪ ti
Random House Webster's College Dictionary
up•pi•ty*ˈʌp ɪ ti(adj.)
inclined to be haughty, snobbish, or arrogant.
Origin of uppity:
1875–80, Amer.; prob. up+-ity
"had a witty but overweening manner"; "no idea how overweening he would be"- S.V.Benet; "getting a little uppity and needed to be slapped down"- NY Times
Presumptuous, above oneself, self-important.
I think you are one very uppity young man.
Origin: Fanciful extension of up. First used in the slave states of USA in mid 1800s.