We all know "hexspeak" magic hexadecimal constants used in #Unix code such as 0xdeadbeef or 0xcafebabe (magic number for universal Mach-O files as well as Java class files). This one found by Colin Gordon during an internship in the #Solaris team at #Sun Microsystems in 2007 was new to me... (/usr/src/uts/common/sys/dumphdr.h)
Source: https://web.archive.org/web/20091120220224/http://blogs.sun.com:80/csg/