Something that is so crazy or so hard that it makes you really tired.
Henry: Damn that party was tiresome last night.

Katie: I know. I woke up at noon after getting so hyper and crashing
by Henry (edumacated) November 23, 2008
A sexual encounter involving tires. Similar to a threesome, but with tires.
Justin is chaffed and covered in friction burns from an erotic tiresome last evening.
by Phil Korn November 6, 2010
when the government makes you text message more than e-mail so you can't save all of your records
The tiresome text left a lot of people at a loss with their intellectual property.
by Coop Dupe December 11, 2019