Phaske and Morrigan had a lot of "conversations" like this when there was still a communication barrier between the two.

Lots of physical language and simpler words, as they both spoke very different languages and Phaske himself had hardly spoken in years, long before Morrigan was handed to him.

Mo's really amused by his big squishy face because he's a big squishy creature (with massive, somewhat squishy arms).