The hand you piss with. Usually the right hand, though some have been known to "pull a lefty" for amusement. Note that using the non-preferred hand can lead to pissing on your shoes and/or other vital organs.

The advantage of having one chosen piss hand is that only one hand need be washed after pissing.
Ricardinho: Hey, dude, which is your piss hand?
Albertinho: Same as my jerk hand: the right.
by Umbertinho April 11, 2008
Get the Piss hand mug.
To finger someone after they have pissed themselves.
"So, I heard Baxter piss handed someone in a cupboard."
by Dr Mengele February 1, 2007
Get the Piss hand mug.
Piece of cake. Easy. No worries.

The less well-known cousin of "piece of piss", this is an Australian term to describe something as easy, especially if you are asked by somebody else.
"Hey mate, did you pass your exam?"
"Yeah, piss in hand"
by Choda Boy 57 June 24, 2007
Get the piss in hand mug.
The act of putting your hand either in front of the penis or under the vagina to intercept piss as it flows out. A warm to mildly hot sensation may follow.
"Its freezing out here Elyssa.. Can you piss in my hand to prevent frostbite?"
by E Dellz July 7, 2009
Get the Piss in my hand mug.