I never called anyone a sponger, I just don't think people so complain so much.
From the expressandstar.com
When John Beaver, a beautiful specimen of the unpopular sponger, spent a weekend with them.
From the time.com
Sponger dolphins shuffle their beak around in the sand, apparently using the sponge as protection.
From the newscientist.com
A sponger soaks up gifts, food and money without working.
From the bbc.co.uk
What do you do with a sweet-talking sponger?
From the ocregister.com
Why don't the Tories just be done with it and call every person claiming benefits a lazy, scamming, workshy sponger?
From the guardian.co.uk
Do not be a sponger, put forward your own concepts.
From the newscientist.com
If there's anything that makes the OP sound like a sponger in the original letter than that's my failing at editing it.
From the guardian.co.uk
I'm a sponger but I'm proud of it.
From the bbc.co.uk
More examples
A workman employed to collect sponges
Leech: a follower who hangs around a host (without benefit to the host) in hope of gain or advantage
One who sponges
Unlike the moocher, a sort of prodigal Holy Fool to whom all right-thinking people must be generous, the sponger is a greedy, calculating parasite. ...
A bodyboarder, because the bodyboard looks like a big sponge