How would one draw a parallelogram/rhombus particle?

[JayPro]

I realize that you'd need 5 steps to draw the square, plus that drawing a square is fairly straightforward syntax-wise to me.
Question is: how does one angle the horizontal parallels? i.e. assuming one looks at it thus:
______
\ \
\ \
\_____\


Thanks in advance.

PS: My illustration's gonna suck; but I think you know what I mean.