killer diller

noun, adj — 2 senses

killer diller

noun

Etymology Perhaps a reduplicative rhyme for killer.

1

Slang A person or thing that is astonishing, outstanding, or exciting.

killer diller

adj

Etymology Perhaps a reduplicative rhyme for killer.

1

Slang Excellent, terrific, outstanding, or wonderful.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.