Bald eagles wearing tupees is my new favorite thing.

@freemo In UK, a syrup.

Syrup of fig = wig.

Other silly rhyming slang is available......

@SteelFolk

I have no idea what you just said actually.. huh?

@freemo Try eagles wearing an Irish. Irish jig.

If they have no Barnet. Barnet fair.

I've no clue why this use if rhymes is common. See if you can guess-

Driving in my jam (jar).
Falling down the apples (and pears).
Shooting my current (bun).
Wearing a whistle (and flute)

Mainly London, not much used elsewhere. Nuts.