welfare line
n. A reciprocating-type lawn sprinkler. So called because the noise it makes is similar to the ethnic composition of a line of folks waiting for their welfare payment: "spic - spic - spic - spic - spic - spic - spic - spic ...chink! Nigga, nigga, nigga, nigga...." (Just say it to yourself and you'll get it.)
Gotta go to the hardware store and buy me a welfare line if I want to get this lawn watered.