"paiseh"

"Paiseh" is an expression of embarrassment or apology in Hokkien (a Chinese dialect). Sometimes used as "excuse me".

For example:

1. (After accidentally bumping into someone) "Paiseh paiseh, didn't see you standing there."
2. "The food is over there, no need paiseh, just help yourself!"
3. "Paiseh, can you help me with this?"

Source: http://singternet.wikia.com/wiki/Paiseh