A person or machine that bakes cakes, or something that excels or is exceptional (informal).
'Caker' can mean 'one who bakes cakes' (cake + -er), but also has informal slang meanings. In Australian and Canadian English, 'caker' can mean someone exceptional or impressive, though origins of this slang usage are debated.
The '-er' suffix creates occupation words (baker, teacher, maker), but in slang, 'caker' jumped to meaning 'something awesome'—showing how the same word can split into completely different meanings.
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