{v.}, {informal} To take the blame; admit your guilt; confess. * /When Mr. Jones asked who broke the window, Johnny owned up./ * /Mary owned up to having borrowed her sister's sweater./ * /When Mother saw that someone had broken the vase, Billy owned up to it./ See: COME CLEAN.
OWN UP
Meaning of OWN UP in English
Slang English vocab. Английский сленговый словарь. 2012