by Shanus teh Anus January 28, 2008

For example two complete strangers falling over in the same area at the same time. Or two people saying an unusual phrase at the same time like "I poke bagers with spoons" That is random tandem!
by Joe Richards March 21, 2007

by the grumpy nipple doctor March 11, 2012

Tandem titties refers to two sets of titties in close proximity of one another such as two nude women hugging. Or two girls in bikinis with their titties touching. It can also be referred to a threesome when there is one man and two women.
by Mikey P June 21, 2016

The practice of two individuals tanning in a tanning bed for two, whereby the subjects enter into a dual suite for the purposes of obtaining a tan by exposure to UV light. Often used in gay-friendly facilities.
by liebman July 31, 2009

a group of overweight people (gores) walking side by side or in a straight line fashion, often taking up a large majority of the provided walking way
Professor: Jim Boy, why are you late to class?
Jim Boy: Sorry professor, I got stuck behind a gore tandem.
Professor: Oh don't worry, that's perfectly understandable.
Jim Boy: Sorry professor, I got stuck behind a gore tandem.
Professor: Oh don't worry, that's perfectly understandable.
by Nhoj Nosnikta December 2, 2011

To simultaneously and unselfishly scratch in a relaxing manner, the inside of each others forearms. When one is scratching, the other simply extends fingers so as to scratch the partners arm as well. Everyone is a winner.
Lying on the sofa trying to stay awake while watching Disney films, one extends arm onto partners lap, Tandem Scratch takes place and therefore both are getting even attention!
by Gordon Star July 7, 2011
