What is rugby drugs definition?

Rugby is a glue sold in the Philippines that used to contain toluene. People sniff it because, among other things, toluene shuts down the part of your brain that regulates hunger. That way you won't notice you're starving to death. The company that makes it has changed the formula to remove the toluene and add an "sniffing deterrent" agent. It might work the way they want it to, but Filipinos will continue to call glue sniffers "Rugby boys."