RhymeZone: ong definitions

Definitions of Ong:

name: A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #6682)

noun: A Chinese surname from Hokkien.
adverb: (Internet slang, text messaging) Abbreviation of on God. [(slang, informal) With all honesty and seriousness; affirmatively]
adverb: (Internet slang, text messaging) Alternative letter-case form of ONG.

(Definitions from Wiktionary)