In expletive form: to release, and or solidify frustration of children fitting the description of a squid.
why won't these kids listen?.....(sigh) Squids!
"can you believe how squidy that person was being when i asked them for directions"
newsagent: that'll be a quid
Girl1: Please can you lend me some money, I really need it to pay back my mum.
Girl2: how much do you need?
Girl1: twenty squid.