Full-on (adjective)

1. Fully committed or engaged, especially in an extreme or intense way.
2. The maximum or most complete degree or level of something.

Origin:

Unknown.

Examples:

1. He went for a full-on attack on his opponent.
2. The concert was a full-on sensory experience.
3. The movie was a full-on action film.
4. She was a full-on supporter of the candidate.
5. The party was a full-on celebration.