"I'm hungry. Let's get a taco." This quote, uttered by the immortal Harvey Keitel as Mr. White, is a great way to cap off a long speech. In the movie, it's Mr. White explaining the basics of jewel robbery to Mr. Orange, but in your case it could be an extended rant about squeezing the toothpaste incorrectly. A word of warning: Don't say it unless you're actually in the mood for a taco. Tacos are no laughing matter.
"All you can do is pray for a quick death, which you ain't gonna get." Here's a "Reservoir Dogs" quote that's a little more on-the-nose than the last one. There are only two situations in which this quote, originally said by the villainous Mr. Blonde (Michael Madsen) to his police officer torture victim, is appropriate. The first is if you want to frighteningly or humorously allude to your torturing someone to death. The other is if you're actually torturing someone to death.
"I'm acting like a professional!" It would be tempting to populate this list of "Reservoir Dogs" quotes exclusively with lines from Steve Buscemi's Mr. Pink, the most intensely verbal of all the Dogs. This quote has him struggling to keep his head in a bad situation and you can use it in this context as well. Only it probably won't be a jewelry store robbery that went bad. Maybe a pizza delivery?
"All right ramblers, let's get rambling!" Here's a good Reservoir Dogs quote for a familiar situation: You're trying to get one or more parties out of your house for some kind of errand or recreational activity. You probably won't be able to deliver it as well as Lawrence Tierney does in the movie, but there's no point letting the perfect become the enemy of the good.
"Eddie, you keep talking like a bitch, I'm gonna slap you like a bitch." This is a good "Reservoir Dogs" action movie quote for someone you know named Eddie who is talking like a bitch. In a pinch, you could replace the name "Eddie" with whoever you're talking to, although some in the movie-quoting field prefer to leave names intact. Use your judgment, just like the characters in "Reservoir Dogs" have to do!
"You shoot me in a dream, you better wake up and apologize." We started with a Harvey Keitel line, so why don't we finish with one, too? This "Reservoir Dogs" quote is a cool way to seem badass without seeming overly threatening or unstable. The person who delivers this line effectively isn't trying to prove anything to you; he's just stating a fact: He's not someone to mess with. Now, as for whether you want people to take this literally and actually apologize to you for something done in a dream—that's up to you.
There they are—six "Reservoir Dogs" quotes that won't cut your ear off. Use them sparingly and remember to give proper credit to Quentin Tarantino and the actors involved. Now get rambling!