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Adjective: full-on  'fûl'ón
Usage: informal
  1. Complete, intense, or extreme; without restraint or moderation
    "The party was a full-on celebration with music blasting all night"
Adverb: full-on  'fûl'ón
Usage: informal
  1. In a complete, intense, or extreme manner
    "They went full-on into the project, working day and night"

Encyclopedia: Full-on