Best definition
black country for soft or mental ya can also call someone a “yamp”, sometimes people joke about you being a “yampy yam yam”
ya can also call someone a yampy bleeder
johnny: yowm yampy yo am

local nutcase: I aye

johnny: yo am yam mental

johnny: yam a right yamp
yampy: define #2
Adj – To go a bit mad, crazy or wacky.
As in;

“Last time my mate Gavin drank Stella, he went completely yampy!”

“Claire; dont get a Zen ipod thing -within months mine went yampy.”

“What the hell is Rooney doing?? He’s gone yampy!”

yampy: define #3
having far too much manic energy
all ferretts are by nature yampy
yampy: define #4
U.K back country midlands slang for someone a bit over the top and retarded, someone with a backwards mentality,
did ya see that last night on tv, them right yamps on the jerry springer show aye they

are yome a yampy get n’ all, yove bin watchin it too long, thats the matter with yo maytey

yampy: define #5
During my Egyptian Canal Zone RAF service 1953-55. I think it was used mainly by Midlanders and Northerners.

A mild insult but exactly what it meant then I cannot now say.
“You’re yampy you are”.
yampy: define #6
1980s British Midlands slang for lower-class undereducated teenagers and twenty-something ‘men’ sporting mullets, wispy moustaches, cardigans, Fred Perry shirts, stay-pressed trousers, white socks and slip-on shoes, plus sovereign rings and a pack of John Player Special cigarettes held nonchalantly in the tattooed hand. An embryonic chav.
“Went to the Ritzy last night and it was full of fucking yampies”
yampy: define #7
Mouthy, lower class, mouthy, unwashed, mouthy, overweight, mouthy, female. Usually, but not always, a pikey.
“she was a right yampy bitch”

“…there she was, yamping on about her dog…”