tell_on
1. [ verb ] give away information about somebody
Synonyms: betray rat shop grass peach shit give_away snitch stag denounce
Examples:

"He told on his classmate who had cheated on the exam"

Related terms: inform tip_off crap informer fink deserter
2. [ verb ] produce an affect or strain on somebody
Examples:

"Each step told on his tired legs"

Related terms: affect
Similar spelling:   Telma