Can you please put it in a sentence

Maybe you're talking about the word "shaowaya" شواية which means "grill". But it's used in standard Arabic, not only Egyptian dialect. If this isn't the word you're talking about, please put the sentence or tell us where you saw it.

(wait shwya ) mean wait me for ashort time :D (give me shwya) give me alittle quantity of ............. it`s Egyption style :D

You mean Shwayya ? it means a "little bit". Definitely a word from a dialect.