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balls

balls /ˈbɑːlz/ verb
ballses; ballsed; ballsing
balls
/ˈbɑːlz/
verb
ballses; ballsed; ballsing
Britannica Dictionary definition of BALLS

balls up

[phrasal verb]
balls (something) up or balls up (something) British slang, sometimes offensive
: to make mistakes in doing or making something
see also balls-up