Slippery Soap, usually called Slippery for short, is a main character on Blue's Clues.
Slippery is a bar of soap who lives in the bathroom of the Blue's Clues House. He slips and slides across surfaces to get around. Slippery's catchphrase is "Whoa!" and he dreams of becoming the captain of a boat when he grows older. Slippery is often seen alongside his best friend Tickety.
Slippery is a mostly light lavender rectangular bar of soap that has rounded edges, a smaller-shaped dent in the front and back, and a pair of arms with 3 fingers on each hand. He has a pair of black eyes and a pink mouth. He is always surrounded at the bottom by a trail of translucent bubbles of various colors (usually purple).
Counting the opening and credit sequences, Slippery has appeared in every episode of Blue's Clues. His first appearance was in "Snack Time". He officially appeared in the series starting in "What Does Blue Need?", where he was the 3rd clue. His last appearance on Blue's Clues was "Bluestock". He makes an additional appearance in the Blue's Room episode "Meet Blue's Baby Brother" and in the "Behind the Clues" special.