Def as in sic. I.E “ That’s a def jam”. Meaning ‘A good song’. Made more popular in the late 80’s with Def Jam recordings record label. Run DMC, Beastie Boys, etc. Also, ‘sic’, as in ‘good’. “That’s a sic bus you got”. HTH
My point was its American, not English in that context. I knew its origin what with me being an OG and all.
Shia/sheer cliff/sheer (eg size)/shear ... Sonny & Cher/ sunny & share Scale size/scale climb/scale lime Pile house / pile rubbish / pile ....... Stew in a pot / stew