(UK, slang) Under the influence of ecstasy (the drug MDMA). / (UK, informal) Very much in love.

simple past tense and past participle of love up

(idiomatic) Alternative spelling of loved-up

(intransitive, informal) To demonstrate affection (on somebody). / (transitive, informal) To demonstrate affection for; treat in a loving way. / (transitive, informal) To accept; to love wholeheartedly.