Flub and Slip-up

Flub noun - An unintentional departure from truth or accuracy.

Slip-up and flub are semantically related In some cases you can use "Slip-up" instead a noun "Flub".

Slip-up noun - A minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc..

Flub and slip-up are semantically related in error topic. Sometimes you can use "Flub" instead the phrase "Slip-up" as a noun or a verb, if it concerns topics such as mistake.