I had my 4 wisdom teeth cut out last week and I now there's a hole in my mouth that seems to be connected to my nose when I gargle water comes out my nose when I blow my nose my mouth flutters is this normal or what??

I can't say normal,but can say it does happen. I had a similar experience ( sort of gross )
But it closed after a little bit. If it is still open after a week, contact your denist, he may need to put some stitches in it. Personal opinoin, it can wait to call them Monday morning.