1. When a person is being rude, acting like a douche, ill tempered or short with you.
2. When someone is distancing themselves from a social atmosphere or acting out of character.
Examples include for instance: studying, not wanting to eat at a taco bus, going to bed before 2am, and not wanting to grind with hot girls.
Mario was being roachy because he didn't want to grind with Brittney.
Celin is acting roachy twards Stephanie.
That boy was so roachy, he ate a live worm.
by guest1234567 December 19, 2011
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A cursed gremlin-like individual
He is just so roachy, making those gremlin-like noises and lookin hunched over like that
by ThatsKindaCringe August 14, 2022
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When one man takes a shit then covers his dick in that shit and another man eats the shit of the dick then vomits that shit back into the first man's mouth.
Ian gave Anthony a nasty Roachy last night and gave him pink eye.
by Mike Dolan April 26, 2008
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An incredibly fat mexican kid at a high school. Wannabe gangster and has no fashion sense.
Guy 1 : Hey Look It's Roachi.
Guy 2: Oh damn here comes the fat ass.
Guy 3: EARTHQUAKEE!
by Christian ESEE August 21, 2008
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To end an online argument by drawing a parallel to a threesome, complete with a youtube link to "3-Way (The Golden Rule) (feat. Justin Timberlake & Lady Gaga)".

Much like Godwins Law this will end the argument, or at least completely derail it, ultimately causing so much confusion, anarchy and turmoil that nothing intelligible follows.
Once Roachie's law was dropped on the Facebook argument, all hell broke loose.
by Countz2000 July 14, 2014
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One that has acquired or is actively acquiring traits with which to prolong one's effectiveness or longevity. As cockroaches are assumed to survive the nuclear something-or-other, so does this subject become more future-proof to an uncertain but probably not just super good time to come.
Whoa that last candidate was a roachy lil bugger, no?
by beesbane August 17, 2020
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One of three things:

1. A marijuana joint
2. A name used for someone rebelious, open-minded (sometimes to the point of appearing crazy or insane)
3. The transgendered singer/songwriter "The Roachy Jay" from www.theroachyjay.tk
4. Someone who strongly respects and/or admires cockroaches
1. Gimme some o'dat roachy jay, 2. Maria is such a roachy jay!, 3. The Roachy Jay is my favorite music artist, 4. He's a roachy jay, just look at his apartment...
by www.theroachyjay.tk July 9, 2006
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