stag, buck, hart
麌 centers on a male deer: a stag, buck, or hart. The meanings are specific to a mature male deer.
麌 combines 鹿 (deer) with 吳, which likely contributes the sound. The character is used specifically for a male deer.
The deer enclosure 鹿 wraps around 吳, like a stag standing inside a forest clearing. The whole character 麌 is a male deer.
For グ, imagine a big stag with a good set of antlers: good -> グ, and the stag is a good buck.