(Verb) Reference to the amount of time a person has been without any sexual relations. This state can be either self imposed, involuntary or some combination.
Nikki told himself, cause he talked to himself quite frequently, "Goddamn I've been on the shelf so long I get a dick-hard when the wind blows nowadays".
by Nikki Stixx September 12, 2020

by Alex Lumb April 23, 2008

by Genxsurviving December 4, 2020

by Kaca6 December 3, 2020

Shelfing is an activity where people try to fit themselves inside a closet. It is a prerequisite for proper shelfing that the closet is not larger than your body volume plus 0,5 m3.
I saw two gals at the museum who had lots of fun shelfing in an antique closet, with the curator planking on the top of it.
by Saturninus October 31, 2011

by mew May 19, 2003

Shelfing is the the act of one inserting drugs into the anus. Using your finger, about middle knuckle deep if you reach back you’ll feel a little shelf. Place the drugs onto this otherwise they will just come back out. App
“Oi Jimbo lets shelf some pingers before we hit the clubs”
“my friend Rach, introduced me to shelfing mdma caps, best thing EVER”
“my friend Rach, introduced me to shelfing mdma caps, best thing EVER”
by Stacey147 March 8, 2021
