Lyric discussion by Smaxel 

Cover art for Ska Sucks lyrics by Against All Authority

The line "a message to you Rudy" is referring to a song by an old ska band the specials, called "a message to you Rudy". Rudy is just shortened for rudeboy, which are those dudes who run around in porkpie hats with flicknifes and call everything sellout :P ps. ska rules :D