to fall; to drop
to fail (an exam); to lose (a contest, election, etc.); to be unsuccessful
to fall; to drop; to come down; to crash; to collapse; to cave in; to give way
木から落っこちてしまった。
I fell out of the tree.
試験に落っこちてしまった。
I failed the exam.
財布が落っこちたよ。
Your wallet dropped.