crackers
Translation
crazy, nuts, insane
Examples
You must be crackers to go swimming in winter.
You must be crazy to go swimming in winter.
The constant noise is driving me crackers.
The constant noise is driving me crazy.
Grammar Patterns
((to be)) crackers to be mad or crazy You must be crackers to do that.
Similar Words
Synonyms: crazy, nuts, insane, bonkers
Etymology
From 'crack' (to break). The idea is of a mind 'cracking' or breaking under pressure.
Memory Tips
Think of a 'cracked pot' or someone whose mind is 'cracked'. This is a very common British informal term.