adverb, adverb taking the 'to' particle
Mimetic adverb describing the action or sound of licking repeatedly or sloppily. Often used with と or as a する-verb.
犬が私の手をベロベロ舐めた。
The dog licked my hand over and over.
猫が毛をベロベロとなめている。
The cat is lapping at its fur.
na-adjective
dead drunk; blind drunk
Describes someone who is extremely intoxicated, to the point of being sloppy or unable to control themselves. Used as a na-adjective.
彼は昨夜ベロベロになるまで飲んだ。
He drank until he was dead drunk last night.
ベロベロに酔っ払って、何も覚えていない。
I got blind drunk and don't remember anything.
Mimetic word derived from the sound or image of licking (ベロベロ). The 'drunk' sense is a figurative extension, likening a sloppy drunk person to the uncontrolled licking action.