Friends: Acquaintances (qv) who feel close enough to you to touch you. Note that you don't necessarily agree with their self-assessment.
Solitary confinement: to them, a punishment; to you, a daily necessity to maintain sanity.
"The real world": a collective delusion, shared by the majority, which they insist you must believe in, or as they term it "deal with". Notable chiefly for having little, if anything, to do with objective reality. Ex.: "Nobody in the real world cares about <your interest>; you'll have to learn to deal with discussing football."
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Sodium is a metal that reacts explosively when exposed to water. Chlorine is a gas that'll kill you dead in moments. Together they make my fries taste good.