Jagalooners 

A person under 5'5. A spicier version of calling someone short or small. For slag you could say "jag" or "Jaga"

"These fucking jagalooners always getting in the way"

Jagalooners by Harry the flying elephant January 4, 2024

Jagaloonery 

The act of making a bad or misinformed decision, and doing it for lulz. Also, being totally ignorant of common societal practices and expectations.

It was jagaloonery when the Ravens lost.

Jagaloonery by RPRIII January 19, 2009