English edit

Etymology edit

Perhaps a reduplicative rhyme for killer.

Noun edit

killer diller (plural killer dillers)

  1. (slang) A person or thing that is astonishing, outstanding, or exciting.

Adjective edit

killer diller (comparative more killer diller, superlative most killer diller)

  1. (slang) Excellent, terrific, outstanding, or wonderful.

Quotations edit