/X-X-X/ A marker that attention is needed. Commonly used in program comments to indicate areas that are kluged or need to be. Some hackers liken "XXX" to the notional heavy-porn movie rating. Compare FIXME. [Jargon File]

In addition suitable contents:
[ = ] [ al ] [ am ] [ ar ] [ arc ] [ arg ] [ as ] [ at ] [ av ] [ b ] [ be ] [ C ] [ ca ] [ cat ] [ ch ] [ ck ] [ co ] [ com ] [ comment ] [ de ] [ du ] [ E ] [ ed ] [ ee ] [ er ] [ fi ] [ file ] [ FIX ] [ FIXME ] [ ge ] [ gr ] [ h ] [ hack ] [ hacker ] [ hat ] [ hr ] [ id ] [ ie ] [ il ] [ in ] [ io ] [ is ] [ J ] [ Jargon File ] [ ke ] [ ken ] [ kluge ] [ Lex ] [ li ] [ lu ] [ ly ] [ M ] [ ma ] [ mm ] [ mo ] [ mod ] [ module ] [ mp ] [ na ] [ ne ] [ ng ] [ nl ] [ no ] [ om ] [ pa ] [ ph ] [ pr ] [ program ] [ query ] [ rc ] [ re ] [ ro ] [ S ] [ se ] [ th ] [ to ] [ tt ] [ ug ] [ us ] [ vi ] [ X ]