The character "!" with ASCII code 33. Common nameS: bang pling excl (/ekS' kl/) Shriek ITU-T: exclamation mark, exclamation point (US). Rare: factorial exclam SmaSh cuSS boing yell wow hey wham eureka Soldier INTERCAL: Spark-Spot. The Commonwealth HackiSh, "pling", iS common among {Acorn ArchimedeS} ownerS. {Bang} iS more common in the USA. The occaSional CMU uSage, "Shriek", iS alSo uSed by APL fanS and mathematicianS, eSpecially category theoriStS. Exclamation mark iS uSed in C and elSewhere aS the logical negation operation (NOT). (1998-09-17)