I saw something about that on Dateline or 48 Hours or some such news show. It's for real. It's huffing - the same as using spray paint cans to get high (I know - can you imagine?)

Here are a couple of links:

http://www.mayoclinic.com/health/inhalant-abuse/HQ00923

and another that mentions white out: http://www.sacsheriff.com/crime_prevention/documents/substance_abuse_08.... , though seems to have much of the same information.

Alittle trivia about white-out, it was invented by a working mom in the 50's. A single mom, needing to work because of a divorce, became a secretary. She used her skills as a former artist to develop a white paint that could correct mistakes so that typists did not have to type over their mistakes. By 1967, she had a million dollar business built from mixing paints in her kitchen to make white-out. Cool, huh. Not cool: I knew druggie kids sniffing the stuff at least thirty years ago. It's not exactly a new trend, but maybe a re-emerging one.