fumble

noun

in sports, dropping the ball
“I was ridiculed for my fumble of the ball on the one yard line.”
muff

verb

drop or juggle or fail to play cleanly a grounder
“fumble a grounder”
to handle clumsily
“I fumbled the presentation – I didn't prepare enough.”
to feel about uncertainly or blindly
“I fumbled in the dark for the light switch.”
grope
to make one's way clumsily or blindly
“I fumbled towards the door.”
blunder
make a mess of, destroy or ruin

bobble