These are some of my favourite phrase which I always used in my casual writing. Piak with sotong, faint kaw kaw, no eye see, *cabut*, twist your head, sikui (= dead ghost in chinese for those who catch no balls), NBTD (= nothing better to do) and not forgetting the fabulous LD. (Those who chatted with me on YM will notice the appearance of this LD on & off. Many have asked me in the past what is LD? Hahaha, LD is just the typo for :D, since L is located next to : on the keyboard. That's how LD originated when I typed too fast, similar as the origin of ti(p)u)
And from what I observed over the past few weeks/months :
*May's tee-hee, fatt hao
*Ben's io ka ch'ng, hiao kao pua si, sikui, CPBSP
*Angel's KKHH & the dying DYK (which has RIP liao?)
*LB's sot sot, bling bling, klang klang & wat else?
*Winn's infamous liuliu, sam pat, melayang-layang & .. napet?
*Will's kin kin siam (wah.. where u want to siam?)
*Carcar's OMG, cheonghei, pangsai/oh see (nyek-nyek, I remember this !!!)
*Pink Cotton's your head, 'x', PP (= phik phiak)
*Ah Boy's laff die me & woof die me
*Sengkor's How Crappy
Anything else to add on to the list?