baccy - tobacco
baffies - slippers
bahoochie - ass
bairn - baby (eastern scotland)
baltic - freezing cold (i use this one a lot lol)
bampot - idiot / unhinged person
banana boat - used in a tall tale type /expression of obvious disbelief (Dae ye think ah came up the burn on a banana boat?)
banger - firework / dick
barra - small child
barry - fantastic (one of my favorites)
bastart - bastard
batter - to beat up
bawbag - ball (like balls balls )
bawheid - bald / stupid
baws  - balls
belter - amazing / great / fantastic
ben - down a mountain
bevvy - drink (alcoholic)
bez - beer
bide - live
birl - spin
bit - a place / someone's house
blootered - very drunk / plastered
boaby - cops
boak - expression of disgust (like dry heaving)
bob - a shilling / 5 pence
boggin' - smelly / dirty
bolt - go away
bonnie - pretty / beautiful
boot - ugly woman
bosie - cuddle
bowfin' - sick making
the box - television
brae - a hill
brammer - term of love (he's a wee brammer, he is!)
braw - good looking / beautiful / nice
breeks - trousers
brief - car
broon - brown
Bucky - short for Buckfast, a popular wine (West Scotland)
buftie - homosexual
buits - boots
bunker - table top
burd - girlfriend / girls
burn - small river / stream