A string of (often loosely) connected puns, the goal of which is to keep anyone willing to listen to such wordplay laughing for as long as possible. Usually these joke trains conclude with an absolutely horrible punchline.
The following example is a typical pun-run:
Q: What do you call it when a mail truck gets in a car accident?
A: A return-to-sender bender
Q: What do you call it when a crossdresser gets in a car accident?
A: A gender-bender
Q: What do you call it when a meat truck gets in a car accident?
A: A tender-bender
Q: What do you call it when a loan shark gets in a car accident?
A: A lender-bender
Q: What do you call it when a Federal Reserve truck gets in a car accident?
A: A legal tender-bender
Q: What do you call it when a Calvin Klein model gets in a car accident?
A: A slender-bender
Q: What do you call it when a smoothie truck gets in a car accident?
A: A blender-bender
Q: What do you call it when your lead guitarist gets in a car accident?
A: A fender-bender
Q: What do you call it when a mail truck gets in a car accident?
A: A return-to-sender bender
Q: What do you call it when a crossdresser gets in a car accident?
A: A gender-bender
Q: What do you call it when a meat truck gets in a car accident?
A: A tender-bender
Q: What do you call it when a loan shark gets in a car accident?
A: A lender-bender
Q: What do you call it when a Federal Reserve truck gets in a car accident?
A: A legal tender-bender
Q: What do you call it when a Calvin Klein model gets in a car accident?
A: A slender-bender
Q: What do you call it when a smoothie truck gets in a car accident?
A: A blender-bender
Q: What do you call it when your lead guitarist gets in a car accident?
A: A fender-bender
by Evan Jaiyen July 19, 2009
Get the pun-runmug. Term used in FPS gaming where the loosing team wants another round. Usualy associated with Halo CTF.
by Runitback October 14, 2003
Get the run it backmug. the sexual act of pulling out your penis before climax and blowing your load in a way that creates a trail of semen from the anus to the vagina. After creating the trail you then proceed to run that trail with the head of your penis until you or your partner is rubbed raw.
by Skeeterman169696969 February 10, 2015
Get the Trail Runmug. Two gay men driving around trying to pretend they are straight by attempting to yell at girls through the window. But rather than actually yelling something useful to pick them up, they yell something ridiculous like "DOHHHH!" and then boyishly giggle about it in the car. Then they go home and have gay sex and grand pappy smash each other.
Dialogue of a Filly Run:
Bobby: Hey Dan... look there's a girl.
Danny: Cool man.
Bobby: Wanna try to talk to her?
Danny: Nahh
Bobby & Danny: (out the window to the female) DOOOOHHHHH!
Danny: Let's go have gay sex.
Bobby: Yeah, definitely. And grand pappy smash each other too!
Bobby & Danny: OH YEAH!
Bobby: Hey Dan... look there's a girl.
Danny: Cool man.
Bobby: Wanna try to talk to her?
Danny: Nahh
Bobby & Danny: (out the window to the female) DOOOOHHHHH!
Danny: Let's go have gay sex.
Bobby: Yeah, definitely. And grand pappy smash each other too!
Bobby & Danny: OH YEAH!
by Parkway July 9, 2006
Get the Filly Runmug. While wearing a lab coat and a face mask, you pour a 3% agarose gel on your girl. You attach electrodes to your girl's nipples, and have sex with her on the gel under a UV light. Right before you cum, you pull out and cum on her stomach, revealing distinct bands of glow-in-the-dark cum.
"Hey guys...I heard last night Special K was running a gel with that new intern and made her cum four times in a row!"
by Samuel Woodward, III April 15, 2008
Get the Running a Gelmug. to leave a group of people at random times to masturbate, then come back out of breath and play it off like nothing happened
by South Wick September 7, 2010
Get the running a marathonmug. by Maurese March 20, 2006
Get the whiskey runsmug.