Playful backslang inversion of “grabe” (an exclamation meaning “so intense / wow / extreme”). Functionally it keeps the same sense as grabe—expressing amazement, emphasis, disbelief, or overwhelm—but flipping the syllables/letters for a fresh, meme-y feel (parallel to other inverted forms like sakalam < malakas, omsim < mismo). Often typed in all caps (EBARG) for extra dramatic effect; not used in formal speech.
EBARG ang traffic sa EDSA—isang oras ako sa isang kilometro!
Translation: Wow the traffic on EDSA is insane—I spent an hour on one kilometer!