Ш-94

ШУБЫ HE СОШЬЁШЬ из чего coll, usu. humor HE ШУБУ ШИТЬ obs, coll VP these forms only neg pfv fut, gener. 2nd pers sing (1st van) impers predic (2nd var. ) fixed WO

sth. is or will be of no practical use whatsoever

it (that) won't (doesn't) do you (me etc) any good

it won't put clothes on your (his etc) back (in limited contexts) it won't fill your (his etc) belly.