I have to admit some of these took a moment to register.

Hypothesis = Understatement makes sense, right?

This is great, had quite a few chuckles.

You could take it one step further and merge in Cockney Slang as an extra stage.

Hacker News / Tweaker Buzz?

That's a very loose definition of "synonyms" . Most are like "conceptually adjacent".

Some poet must have had a lot of fun with these slipping things past the censors. It'd be in the same league as the underhanded C contest - what is the most innocent short text that can be written while slipping in some subtle but likely rather dirty double meaning in.