Very uncommon misspelling of High School.
1) A place where teenagers put too much effort into something that will not matter a day after graduation.
2) A place where teenagers think they know it all; often starting unresearched arguments with equally clueless teenagers on world-politics while the teacher plays Solitaire and checks his/her e-mails.
3) A failure of an education system. By the last two years 90% of the students are no longer motivated and just want to get out of the mess. This stems from poor teachers, a poor and inconsistent curriculum (see: foreign languages), being in a shit-hole for a good portion of the past 730 days.
4) A place where there may be up to a hundred cliques, if not more. Members of these cliques cross-over into others frequently. It's all very confusing, but the "main" ones are often: Preps, Jocks, Stoners, Nerds, Normal.
"Hi school really sucked yesterday."
"'Hi school'? You said that wrong."
"It's 'High school'. Duh."
"How could you know how I spelt something I said?"
"The 'gh' isn't as silent as you think."