The following information about mod jargon is from the website BBC America (link is below). This is not in my own words i’m just referencing.
A face is a good mod; someone with the right clothes, the right haircut and the right taste in soul music and ska. An especially good mod would be an ace face or, more properly, THE ace face.
A ticket is a bad mod, someone still wearing last week’s fashion, slightly grown-out hair, and not enough/too many mirrors on his scooter. It comes from third-class ticket, a reference to train fares.
These terms stated above were used in a song by the who :
- Seven and six
The mod lifestyle was about conspicuous spending on quality goods. Suits had to be tailored, not bought off-the-peg, and anyone who did turn up at an all-nighter wearing a low-cost version of mod fashion would be labelled a seven and six.
A delightful experience, a giddy thrill. You’ve heard of teenagers doing things just for kicks? These are flasher.
A term used to describe poking fun at someone, as in “Did you see me decking those tickets? What a flashkick!” Although in more recent British slang to deck someone means to hit them, with the inference that you’ve hit them hard enough to knock them over.
Mods liked to fight. They fought with rockers, they fought with fake mods, and they fought with themselves if there was no one else about. To engage in a fight with someone was to jump through them.
- Number A number was a run-of-the-mill mod, if you can imagine such a thing. Which when you bear in mind quite how special each mod considered himself to be, being considered just one of the herd was a stern insult indeed. But being a high number (like the High Numbers) was quite the compliment. The term was picked up by mod-revivalist Paul Weller in the early days of the Jam, when he wrote the song “Away From the Numbers,” although he seems to be talking more about being on his own than being the very acest face in the place.