Blame it on the dry mouth

A saying used as an excuse when people continuously slur their words as a result of being very high.

Kenzie: I know that amaa--amba-aa-ambidextrous girl.

Caitlin: What? Haha, You tripped over that one a bit!

Kenzie: Oh shh-shhushhuhhshh.

Caitlin: Just blame it on the dry mouth bro.