Megabeggar

There once was a king who was mega
Then he went through the guts of a beggar
(Which was "Hamlet", and which
Was not a ham sandwich)
And seventeen plates of fried egger.

"Where am I?" enquired Arthur.
"On the page" said the page.
"No, you're supposed to say 'in Glasgow'."

There once was a boghole called Glasgy
Which in no way had heard of Bing Crosby,
When they claimed that this rhyme
Was ahead of its thyme,
Basil (sage/dill) an(i)seed, "Mustarve Parsley".

(Eh?!)