mc5 - The Obligatory Limericks Game

But the double I've seen is

rab

[pen] Um... I was drinking a cup of tea at the time, which threw my scansion into disarray. Obviously.

Now on The Tweenies invoking dubious rhyme

And now my double is double bubble

Whilst walking one day in Bangkok

Dujon

I happened upon Doctor Spock -- Keeping it clean; well, so far. :-)