I've had to look most of these up, so wait for a second opinion:)
1) zebrać szczękę z podlogi
if you are amazed or in disbelief about something, your jaw drops. If you have to pick it off the floor, then you're really amazed :)
2) foch
the sulks
3) which one is correct: help me with or in
help me
with is used more often.
4) pierdoła/sierota
bullsh*t/orphan
5) ogórek kiszony- according to wikipedia it's a pickle but it's not
According to my dictionary, kiszony is pickle or marinated .