Boorishness and Slip of the tongue

Boorishness noun - Inelegance by virtue of being an uncouth boor.

Slip of the tongue and boorishness are semantically related. In some cases you can use "Slip of the tongue" instead a noun "Boorishness".

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

Boorishness and slip of the tongue are semantically related. Sometimes you can use "Boorishness" instead a noun phrase "Slip of the tongue".