Speech or writing having unusual or pretentious vocabulary, convoluted phrasing, and vague meaning.
Slang or Lingo
"I'm just not up on all the jargon."
Used to describe a french kiss in Ireland
Did ya shift him/her last night? Meaning did you kiss him / her(tongue action involved!)
You shifted the face of him/her last night (You were kissing him/ her passionately last night!)