A 'Grenoobtube' or 'Grenoob-tube' launcher comes form a blending made by myself of grenade+noob+tube as another jargon term for the grenadelauncher attachment for most weapons on call of duty modernwarfare 'cod4' and call of duty modern warfare 2 or 'cod6/ cod mod2'
by doodeyboob January 7, 2010

Another way of saying that something is really going to pot -- when you say such-and-such is going down the tube, it is spiraling downhill extremely rapidly.
Man this drone flight is really going down the tube...O FUCK, There's a tree!!! (*CRASH!!!*)
That woman's performance on American Idol started to go down the tube when she forgot a critical lyric to the song she was performing.
That woman's performance on American Idol started to go down the tube when she forgot a critical lyric to the song she was performing.
by Telephony October 8, 2018

by Unicorn death trap September 4, 2015

An NMR tube is a tube used in NMR Spectroscopy (used to detect molecule structures depending on peaks on a graph). Cleaning it usually uses acetone or dichloromethane and getting rid of it involves vacuum and maybe IR lamp. Organic chemists sometimes send samples to an NMR lab to get it back with the graph and detect if they got their product.
by HawaiianPunch1 August 20, 2023

Blowin a tube is like when you have a lot of milk or ice cream and you’re lactose intolerant and you run to the bathroom and blow the tube clean out. Your tummy can’t handle it, and you blow a tube.
Hey Tony, I had way too much mozzarella last night and was really blowin’ a tube. I had some explosive diarrhea!
by JuliusPepperwood89 July 14, 2023

Its the fat thats hangs down around an overweight persons middle, looking like an innertube but made of skin
by klockster69 January 4, 2009

by WonderMacaroni December 15, 2014
