Used among friends to lightly tease without causing offense. Be careful with new acquaintances. After Peter spilled his drink, his mates called him a 'wally'.
Pro Tip 2/3
Casual Use
Not suitable for formal situations, best used in casual or informal settings. At the pub, calling someone a 'wally' might get a laugh.
Pro Tip 3/3
UK Slang
Predominantly British slang, may not be understood or used in other English-speaking countries. While visiting the UK, I heard someone called a 'wally' for the first time.