terra firma

(n.) Firm ground. Not flooded.

It's good to get my feet on terra firma again after being at sea for three months.

by Kung-Fu Jesus May 12, 2004

terra firma

To crap so much in the toilet that a large portion of it breaches the water level, forming an island.

Guy 1: Oh, godzilla! Come check this out! I got terra firma in here!
Guy 2: I’ll pass, thanks.

by exitflagger May 6, 2008