Whats that movie from the 80's or 90's were two teenage boys have a house party and some angel helps them?

Its some movie i watched that was on comedy central last year, it was on the channel really often and it was about two unpopular teenage boys who have a party and some girl whos an angel helps them out or something and these bikers crash it and they come driving through their windows and stuff i think one the boys in it was named eric or something im not sure. At the end of it the angel is their gym coach. I only seen the last 20 mins of it but it looked really good.Any idea's what it might have been?