messup
nounUK /ˈmesʌp/
US /ˈmesʌp/
A messup is when you make a mistake or do something wrong.
The cake was a total messup because I forgot the sugar.
OTHER MEANINGS
2. A confused or disordered situation.
The party turned into a real messup after the power went out.
3. A person who often makes mistakes or causes trouble.
He felt like a messup after breaking the vase.
4. The act of ruining or spoiling something.
The rain caused a messup of our picnic plans.