If you missed it, here are the highlights in GIF form.
There were only four participants this time: Donald Trump, Texas Sen. Ted Cruz, Florida Sen. Marco Rubio and Ohio Gov. John Kasich.
Hands played a major role.
They came up in the ongoing Rubio/Trump feud.
Hands down, the appendages were the star of the show.
Cruz had something on his lip. The Internet noticed.
The candidates didn't hesitate to start talking all at once.
Kasich put his hands on display.
Trump said Rubio is "not a lightweight," which the senator clearly believed.
Rubio fired back, but Trump was not having it.
This is the face Trump made when moderator Chris Wallace implied that Trump might not be the eventual nominee.
Rubio decided to end the debate with a fist bump, lest we forget he's a cool dad -- a cool dad who's been under the weather this week and doesn't want to get any of his fellow candidates sick.