Slip up and Slip of the tongue

Slip up verb - To make a mistake.

Slip of the tongue and slip up are semantically related. in error topic. In some cases you can use "Slip of the tongue" instead a noun "Slip up", when it comes to topics like mistake.

Slip of the tongue noun - An accidental and usually trivial mistake in speaking.

Slip up and slip of the tongue are semantically related. Sometimes you can replace term "Slip up" with "Slip of the tongue", this terms are similar.