When a dog runs laps around your yard or house, typically at full speed, for no apparent reason. Highly entertaining to watch.
Buster and I were playing fetch, and then all of a sudden he got the rips! It was hilarious!
by C. Smith December 9, 2007
derived from the acronym R.I.P (Rest in Peace) often used on gravestones, used as a response that loosely means "this/that sucks" or "that's whack"
Example 1:

Person 1: i accidentally called my teacher mom today i want to die
Person 2: riiiiipppppp

Example 2
Person 1: i got 62% on the math test rip me

Person 2: i got 55% rip

Example 3:
Person 1: i'm screaming i saw a girl wearing crocs under her prom dress
Person 2: RIP
by boi-he-boutta-do-it October 25, 2016
To dis or burn a person, group of people, or a corporate entity.

"She ripped on that one goth 'cos she thought he stole her phone."

"Sorry for ripping on you guys, I really didn't mean to."

"I'm going to rip on WalMart 'cos they sent my job overseas."
by Kreoche April 28, 2006
Used to indicate that a plan or idea has fallen through.
Example 1.
Person A: "Hey man, are we going to the mall today?"
Person B: "Nahh, it's my grandma's birthday so my family wants me to come to see her."
Person A: "Dammit."
Person C: "rip"

Example 2.
Person A: "Yo, we gunna make those grilled cheese sandwiches?"
Person B: "Ahh we could have but I forgot the cheese."
Person A: "rip"
by furryflycat January 31, 2016