This is cafeaffe. Read as Cafe-Affe.
This doesn’t mean much. This is one of those 32-bit numbers, written in hex, frequently used in dev or tests (similar to foo-bar or Alice-Bob), particularly in low level programming.
This is a nice memorable word. Other such words include DeadBeef, CafeBabe etc.
Trivia: CafeBabe is used in official Java class file format.