1. Being in the state of constant misfortune or in a non-stop state of disrepair.
2. Constipation after a heavy night of drinking or drug use.
"Sucks to be Mike, not only did he get laid off from work today but on his way home he got a flat tire and a call from his wife saying she is leaving him because she got a notice of a Federal Tax Audit...that boy keeps getin constafuct!"
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi