aggro

[ ag-roh ]
/ ˈæg roʊ /

noun British and Australian Informal.

aggressiveness, especially that of an urban youth gang or gang member.
trouble; irritation.

Origin of aggro

1965–70; construed as a shortening of either aggravation or aggression (or aggressive); see -o

British Dictionary definitions for aggro

aggro
/ (ˈæɡrəʊ) /

noun

British slang aggressive behaviour, esp by youths in a gang

Word Origin for aggro

C20: from aggravation