Author's note: best not.

"She's a big girl, sir."
"Good grief, I'll have to take a walking holiday to circle her."
"She is a little globular."
"A little! Well, there's a first time for everything."
"You've never ridden her?"
"Never."
"I affectionately call her Bertha."
"As in big?"
"Yes. She's a favourite with all the boys. Homely."
"Looks a blimp!"
"The correct term's Zeppelin."
"Ah, that explains a lot."
"Why?"
"She's German."