G'day Helen,Glad you got a grin, and pissed yourself - howsomever, I really prefer the expression...
"I laughed 'til the tears ran down my leg"...;)
How about some Strine ones like.....
Outback, beyond the black stump, up the boo-aye [sp?] etc (living in a remote area).
Haven't heard those in yonks (a long time)
Kia ora - Sam