"Mawage" - speech impediment or just English dialect?

[TubaDiva]

@jayjay

John Ross Bowie, who plays Barry Kripke on Big Bang Theory, has this speech impediment. The character has it x100, but the actor naturally has a mild form of it and plays it up for the role.

Played to comic effect here:

Sheldon & Amy Wedding Part 2 - The Big Bang Theory

I’ll never be able to hear this song the same way again.