Tubestroker: a US Marine who decides "Fuckit!" and chooses the Infantry Mortar-man MOS, 0341. He is therefore entitled to absolutely nothing and sits on his ass in Afghanistan waiting for a fire mission. Way to spend four years, Marines.
"Yo, that boot over there just learned how to be a tubestroker. Fucken 0341's, man...
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.