Д116
МОЁ (твоё и т. п.) ДЕЛО (-) СТОРОНА
coll (sent
these forms onlyfixed WO (used by the speaker to justify himself for not being, or wanting to be, involved in sth.
also used to express the speaker's opinion that another should not get involved in
sth. ) I am (you are
etc) not or should not be involved in
sth. : Х-ово дело сторона - it has nothing to do with XX has nothing to do with ititfs not X's affairitfs no business (concern) of X'sirts none of X's business (concern)X is not involved (mixed up) in ititfs not X's place to get involvedX has no place getting involved.