Shut Up Your Face.

A variation on the popular web-slang of 'STFU'.

Origin: Natural-Selection Community, April 2002.
And I quote the wise man Mart, whom during a conversation with Martigen, used the following earth-shattering phrase: "SUYF."
by Mart April 23, 2003
<jedimasta> wehn does beta 3 cum out ?
<jedimasta> waht
by FAWN February 23, 2003