A clause in an GI's contract allowing the government to hold you past your ETS date for war or other national emergencies to keep your unit at or near 100% strength. In the case of a deployment they can hold you up to 90 days after redeployment but a Liutenant Colonel or higher can release you earlier if you finish outprocessing sooner than 90 days. It's simular to stop movement but that stops you from PCSing to another unit.
Stop loss wasn't even thought about a few years ago to new recruits and now thousands of soldiers in the army cant go home on thier ETS dates because they're either facing a one year tour to Iraq or Afganistan soon or they're already over there
A Korean, Filipino or Russian girl who works in bars and clubs outside of US military bases in Korea and gets GIs to buy them expensive glasses of juice or alcohol in exchange for a conversation and occasional sex on the side. For every one nice girl you meet about five more who just want to take all your money on payday.
That dumb-ass blew his whole paycheck on that drinky girl from the B@B club last weekend and now he can't even afford to get a haircut for next week.