Well, “slithy” means “lithe and slimy.” “Lithe” is the same as “active”. You see it’s like a portmanteau–there are two meanings packed up into one word.
We're so bombarded with images, it's a struggle to preserve our imaginations.' In response, he's turned to cinema, commissioning 11 film-makers to contribute to a portmanteau film, entitled '11'0901' and composed of short films each running 11 minutes, nine seconds and one frame.
Rodolphus therefore finding such an earnest Invitation, embrac'd it with thanks, and with his Servant and Portmanteau, went to Don Juan's; where they first found good Stabling for their Horses, and afterwards as good Provision for themselves.