I don't know if this is enough to track it down, but I remember seeing this on cable years ago, and two images stick out in my mind.

One was a gag setup involving sneaking a lobster into bed with a girl which resulted in her getting a lobster pinching her nipples, running out and screaming with it still on her...

The other was that hockey somehow figured into the plot.

I don't know if the movie was about Hockey, or was canadian or what, but it sounds similar to "Party Inc." which is AKA "Party Girls" made in 1989. I could swear the movie I'm thinking of was made a few years before then, but who knows. If this is the right movie, or someone knows, please help.

Thanks!
:D

The movie you're looking for is One Night Only (1986).