Originates from nautical slang, so it's particularly used among sailors or in seafaring contexts.

Sailing Culture

'Landlubber' often carries a humorous tone when teasing someone's lack of seafaring skill.

Colloquial Humor

It can be mildly insulting if used seriously but is usually light-hearted.

Mild Insult

 operated underwater drone systems and and then enjoy I enjoy right now I look over my shoulder and I'm looking at it the wetlands and can Connecticut actually I actually like being on land a lot for a guy who spent so much of his time in the ocean he's a landlubber at

125th Anniversary...

 We are extremely dinosaur-like, and unusual in our two-legged approach to life. Now, if you want to understand what happened then when the continents broke apart, and dinosaurs found -- landlubbers, as they are --