I have this on a shirt and cannot find out what it means. My findings are that it is bopomofo/zhuyin phonetic for "Wai1". The only translations I found were "lop-sided" which doesn't seem to make any sense, and "awesome power" which seems to make more sense for a shirt but this is a Cantonese translation and apparently bopomofo is not commonly used for Cantonese. Anyone know?
This is how it appears on the shirt:
ㄨ
ㄞ