1. most Rikki-Tik - Adjective
2. most Rikki-Tik - Adverb
most Rikki-Tik (not comparable)
(slang, US, chiefly military) quickly, immediately
Get that done most rikki-tik.
most Rikki-Tik (not comparable)
(slang, US, chiefly military) quick, immediate