All you need to do is sign up for a Twitter account (if you don't have one already), and then include the words 'rofl at' in your update:
Rofl at guys who pretend to be a girl on the internet
This site then grabs the latest updates and loops through them on this page.
RT @MissMillyStyles: You put 'ROFL' at the end of a sentence, but really, your just sat there. As motionless as a turd. -- onednews #1.63260027179E+17
You put 'ROFL' at the end of a sentence, but really, your just sat there. As motionless as a turd. -- MissMillyStyles #1.63259553357E+17
~RT @belarasati -_-RT rysntl: ROFL AT THIS RT @belarasati Tuh kan dengerkan...RT justinbieber: apa de? (cont) http://t.co/pdg8n5di -- rysntl #1.63247902746E+17
ROFL AT HEE'S ENGURISH. WAIN TBA XD I SAWN. -- Msma3rf_ #1.63246401806E+17
-_-RT @rysntl: ROFL AT THIS RT @belarasati Tuh kan dengerkan...RT justinbieber: apa de? Cewek gue tuh emang ... http://t.co/0qoroC60 -- belarasati #1.63244423311E+17
ROFL AT THIS RT @belarasati Tuh kan dengerkan...RT justinbieber: apa de? Cewek gue tuh emang caitlin no (cont) http://t.co/A6Dnb4Qb -- rysntl #1.63242147733E+17
ok..LOL LMAO ROFL at those vlogs! -- Opheliaawh #1.63226683565E+17
Rofl at my last RT cx -- TrulyKins #1.63220020741E+17
@xezabelx they need to do something abt the maknae line seriously rofl at least there's hope for jeongmin heheh -- kikiahra #1.63218779399E+17
@Freyland I forgot to tell you that it was national chocolate cake day yesterday (rofl at that being on your birthday) -- summerndubzRF #1.63212447615E+17
Rofl at Edward saying "Get over yourself, it's not a movie" :') -- SandraNslund #1.63198865204E+17
ROFL at my last RT hahaha -- sibtain_r2009 #1.63192108336E+17
Rofl at my previous tweet -- xxFr3ak0z #1.63186060116E+17
RT @TheMalvika: ROFL at Rahul Nanda calling Ranbir "Rabbit" -- VickneshRai #1.63184384454E+17
ROFL at Rahul Nanda calling Ranbir "Rabbit" -- TheMalvika #1.63183256459E+17