jeansies means jeans. Lexicurio rates it Sui generis — a strength score of 96 out of 100.
Etymology
From jeans + -ies.
noun
- Jeans.“So, with his hard-accumulated one hundred and fifty bucks tucked away in his jeansies, he leaped a car and fared forth for goods wherewith to make a presentable showing on the walk which is composed of boards.”