'wii sah [*'wii/*sah]
Idiom composed of: 'wii=  large, sah1  day
common noun. a long while, for example 'all day long'
../mp3s/'w/'wii_sah-dl-hb-03.mp3 Dm hakhałelsi'nm dzi 'wii sah. We will work for a long while.

Source: Draft Dictionary entry.