What's cooking?: What's happening? What's going on?
A mouthful : a long talk.
saucy : ( sin. "spicy" ) full of life; interesting and lively.
"When life gives you lemons, you gotta make lemonade": a saying that means that you have to take advantage of the situation you're in, even if it's not the best.
kosher : good, legitimate, valid.
a piece of cake: ( sin. "a cake walk" ) something extremely easy.
bread and butter : money, life means.
"That's the way the cookie crumbles" : an expression that means "it's a fact" or "that's life".
a lemon : something bad, unuseful or defective.
"The greatest thing since sliced bread": excellent and original.
from scratch : do a complete process from step zero. Start something from the very beginning.
salt and pepper : energy, good disposition.
"out of the frying pan, into the fire": to be in a situation that is worse than the previous one.
white bread: boring.