from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Chiefly British With the flat side or edge of a sword.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. Flatly, plainly.
- adv. In a flat position.
- adv. With the flat part of a sword.
from the GNU version of the Collaborative International Dictionary of English
- adv. With the flat side, as of a sword; flatlong; in a prostrate position.
from The Century Dictionary and Cyclopedia
- With the flat side; flatwise; flatly.
From flat + -ling. (Wiktionary)