simplification of 唻?
This is a simplified word, and it is a rare used word. Most people will recognize it only as 哆唻咪(doreme), but now it's replaced mostly by 哆来咪，or even 多来米. 
And the word 口来, though it is said to be simplified version of 唻， in fact this may not be realy a word, it's never used, even can't be inputed by most Chinese IMEs.