look up any word, like ratchet:
an out of date apple computer.
the school computers were such granny smiths they still had green screen monitors.
by mike September 13, 2004
When you get out of an hour long bath with wrinkled fingers and have a wank so that it feels like you're being tossed off by a geriatric.
Guy 1: had a cracking Granny Smith last night

Guy 2: wasteman cuz
by Obi Wankanobi January 22, 2014