Green’s Dictionary of Slang

(US) as an intensifier, really, very.

2016

The Cut (NY Times Mag.) Mar. 🌐 ode or OD — In late ’00s, OD (pronounced oh-dee) used to mean really or very, derived from the acronym for overdose. Now it retains the same meaning, but the spelling has changed to ode. [...] As in: ‘Jessica, I love your Snapchat story! It’s ode gucci!’.