Try
http://www.jgbhose.com/Data_Returns/...&cname=New+Age
There's a picture, though you don't need one with barbs as pronounced
as those

You should be able to find them at Lowes or HD in their plumbing dept.,
Just tell the clerk ya want a barbed connector for washer drain hose.

You don't need to get too technical with this, all your doing is
connecting two drain hoses, right?

They (the drain hoses) are usually made out of a harder rubber
material that's hard to compress. I'd bet if you tried to tighten the
hose clamps some more it will stop or slow down to a stop.

If you use'd the type of screw clamps that looks hexagonal, you can use
a 5/16" socket on them to aply more tourque to tighten the
clamp.......Like ameijers said earlier it'll take a few cycles to
soften up the rubber so it can 'set' on the connector.