Readings & Meanings:
I dropped and shattered a very expensive piece of pottery.
That person has a great capacity for understanding and doing anything.
I'm good at most things, but I haven't really accomplished anything.
That shopkeeper's wife has really good looks.
口, mouth, has been quadrupled here to show that there could be many different kinds and shapes of vessels that 器 refers to. 口 surrounds a character that comes from 犬, but don't ask me why. Don't ask me!
器用貧乏 is a great word. I love how the Japanese have an exact match of our "Jack of all trades, master of none" sentiment, summed up in a four-kanji combo.