A catch-all term used to describe undesirables in the South
Wales area. This is due to a
large proportion of said undesirables hailing from places beginning with the prefix 'Ton', e.g., Tonypandy, Tongwynlais etc.
Features of the tonna include diamond stud earrings, fake tans, bleached hair, a
love of cheap cider and trance music.
'That tonna is loving that
Cascada tune'
'That tonna just started on me for no
reason'
'Those shoes make you look like a tonna'