Squid Math

My kids have learned a new game from Cartoon Network:

"Squid" plus "Fish" equals "Squish".
"Squid" plus "Kill" equals "Squeal".
"Squid" plus "Peak" equals "Squeak".
"Squid" plus "Chair" equals "Square".
"Squid" plus "Washing machine" equals "Squashing machine".
"Squid" plus "Poo" equals "Squoo".

..... Well, you can imagine there are been lots of silly adding lately!