What is this? 嚽是什乇?

A Foochow Romanized keyboard/IME. 蜀隻平话字输入法。

How do I use it? 蒋样用?

Type the regular letters using your keyboard. Press the buttons to add diacritics, or use the following key combinations to add tones:
Alt+1: 55
Alt+2: 33
Alt+3: 213
Alt+4: 24
Alt+5: 53
Alt+6: 33 (same tone as 2 in qilinbayin)
Alt+7: 242
Alt+8: 5 (same diacritic as 1)
Alt+0: two dots under
Text will automatically save to local storage.