toppare (ww):
blunderen(en) To make a stupid mistake., een bok schieten(en) To make a stupid mistake., een flater slaan(en) To make a stupid mistake., falen(en) transitive: not achieve a stated goal., flateren(en) To make a stupid mistake., miskleunen(en) To make a stupid mistake., mislukken(en) transitive: not achieve a stated goal.
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Via: Memodata.com