Toxic can actually be used to describe anything at all. Some examples:
Somebody throws a huge rodeo 7 opposite mute: ''Sweet, did you see that huge toxic he just threw?''
At Mcdonald's, you want a Super-Size #2 meal: ''I'll have a toxic, please.''
Your friend steals your copy of Ready, Fire, Aim: ''Come on man, give me back my toxic.''
As you can see, toxic is a very versatile word, and should never be used again in any context. Ever.
''Freshmen are kind of like cocaine... hella fun, but still dangerous.'' - kamikaze