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<adverb> British Slang;

1) Synonymous with 'absolute', 'positive', 'total' etc...
"Jonathan is an absolute, full-on knob-head!"
Full-On by Stuart Fletcher November 15, 2004
(of an activity or thing) not diluted in nature or effect.
Full-on by Arminkshipper April 18, 2025
Adj, holding nothing back. intense, relentless.
no way mate, that was so full on its doing my head in.
full on by herbie August 25, 2004
Full on hungry. Full on pissed.
full on by Jess Face September 21, 2005
The absolute whole amount of something, maximum quantity or intensity, such as turning a tap on full, it is all go, all happening and 'full on'.
Rents: " How is University?"
You: " It is full on, I have 2 assignments due tomorrow and a 4 hour lab this evening, exams next week, a cold coming on, no money, no food in the house and everything is just FULL ON!"
(oh yes and I forgot to mention my hot date later tonight~ I got the cold, and the cold sore off them as well;)
full on by Intensity May 27, 2006
having a strong or wild personality, audacious
Tawny is making out with some random dude and shouting at the boat captain to be a man and speed up. That girl is so full on.
full on by Carlo R. April 3, 2008