Nouns

(n)fumble, muff(sports) dropping the ball

Verbs

(v)grope, fumblefeel about uncertainly or blindly“She groped for her glasses in the darkness of the bedroom”
(v)fumble, blundermake one's way clumsily or blindly“He fumbled towards the door”
(v)fumblehandle clumsily
(v)botch, bodge, bumble, fumble, botch up, muff, blow, flub, screw up, ball up, spoil, muck up, bungle, fluff, bollix, bollix up, bollocks, bollocks up, bobble, mishandle, louse up, foul up, mess up, fuck upmake a mess of, destroy or ruin“I botched the dinner and we had to eat out”, “the pianist screwed up the difficult passage in the second movement”
(v)fumbledrop or juggle or fail to play cleanly a grounder“fumble a grounder”