尻 is a Japanese kanji written with 5 strokes, listed here under the keyword “buttocks”. It is built from 九 (nine) and 尸 (corpse). In Remembering the Kanji by James W. Heisig it is frame 1134.
On KumiJi Glyph Explorer, open the parts search and type “nine” + “corpse”. 尻 is among the results, together with every other character containing the same shapes.
Open 尻 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.