What does the word 'Floop' mean to you?

I’ve only seen this word used as a sound effect

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It is something my sink is saying, right now. So, nothing good.

According to author Douglas Adams in Life, the Universe and Everything, mattresses from the swamps of Sqornshellous Zeta are capable of doing things floopily, meaning in a floopy manner.

I knew I’d seen it in THHGTTG in somewhere!

https://www.youtube.com/watch?v=GHcLWy1O4FA&ab_channel=Deestow

Floop is a madman help us save us!