Doohickeyism

Making up jibberish words to describe technical parts or tools in the midst of performing some kind of setup, maintenance, or construction. Can be used in various fields of profession, from automotive repair to sound engineering; from carpentry to cable installation.

Paul:
"Hand me that dooddlebobby* over there."

Aaron:
"This?"

Paul:
"No. That's the flabberjobber*. I need the dooddlebobby*."

*Doohickeyisms