Boogie-bogeyman merger

The boogie-bogeyman merger is the merger of /U/ and /3\/. Some Welsh English speakers distinguish the vowels in "boogie" /bUgi/, "book" /bUk/ and "wool" /wUl/ from the vowels in "bogeyman" /b3\gim{n/, "woman" /w3\m@n/ and "wolf" /w3\lf/.