The lisp you get when you talk while wearing a mouthguard
Person 1: You got your mouthguard for ufc?
Person 2: Yeth, I have my mouthguard for uf -thea. And I covered it in Vatheline.
Person 1: please take out your mouthguard.
Person 2: (takes out mouthguard) Sorry, mouthguard lisp.
When a very large person breathes heavily over their words making it difficult to understand them.
John: "My name is ahtbajaj."
Me : "What was that? I couldn't understand you through your Polish Lisp."
A speaking disorder gained particularly by males from gobbling large amounts of cock.
Did you here Jordan'a dick lisp. I heard we went backpacking through Europe and participated in what the Germans call Wurstzubereitung.