Green’s Dictionary of Slang

(W.I.) improved, smartened up.

1973

E. Braithwaite ‘Jah’ in Arrivants 162: With my blue note [...] my ten bebop fingers, my black bottom’d strut, Panama / worksong, my cabin, my hut, / my new frigged-up soul and God’s heaven, / heaven, gonna walk all over God’s heaven . . .