What is Slish?
1.
slitting your wrists in the shape of a fish
i wanted attention so i slished my wrists
See
2.
vagina
man, i was all up in her slish, and it was slishy slishy!!
3.
The sound of a finger slipping in and out of a wet vagina on the school bus. From Tom Robbins "Even Cowgirls get the Blues"
'Sissy recieved a solid fingering on the bus coming home from the football game and responded with a slippery suculent sounding pussy'