IPA: /ˈsaʊərˌbɔl/
KK: /ˈsaʊərˌbɔl/
A small, round candy that has a strong, tangy taste and is often hard.
She offered me a sourball from her candy jar.
The word 'sourball' is formed from 'sour' (from Old English 'sūre', meaning having an acidic taste) and 'ball' (from Old English 'beall', meaning a round object). The term 'sourball' refers to a person who is grumpy or unpleasant, akin to the sour taste.
Think of someone who has a 'sour' disposition, like a lemon, and 'ball' as a round object — this helps you remember that a 'sourball' is someone who is grumpy or unpleasant.