Slayer Mouth-off
When two hardcore metalhead slayer fans argue, possibly for hours, about how much they know about slayer ect. it is a diverse bonding ritual of slayer fans, when they feel threatened by another slayer fan. slayer fans don't usually like other slayer fans.
typical slayer mouth-off..

slayer fan #1: how many slayer tee shirts do you have?
slayer fan #2: 5. how many do you have?
slayer fan #1: 5. how many slayer albums do you have?
slayer fan #2: all of them. how many do you have?
slayer fan #1: all of them including the one that they never actually released. i had to drug Tom Araya to get it..
slayer fan #2: well i have the limited edition slayer action figures!!!
slayer fan #1: how come i'v never seen them in your room?
slayer fan #2: because i hide them under my bed!
slayer fan #1: fuck you man, you just dissed slayer i'm gunna have to kill you.
slayer fan #2: *brutally mutilated* lets put on some slayer.