The act of a man standing outside a shop while his wife/girlfriend/partner shops inside. Man Standing involves looking into space, at other women, or in the case of multi story shopping centers, leaning on the railings of an upper floor watching the people below.
When two guys go to the toilet at the same time. One is sitting on the toilet seat in the usual fashion, and the other sits on top of him, facing him, and shits between his legs.
Person 1 : 'Damn, they've only got one toilet here! I'm desperate!'
Person 2 : 'Hey, me too!'
Person 1 : 'Looks like we'll have to do a two man stand, I'll go on top'
Person 2 : 'Fine, just don't shit on my legs again like last time!'
The act of a male positioning himself in a location to ensure maximum visibility and likelyhood of attracting inviting glances from females of the same species with the ultimate goal of having sexy time, or words to that effect.
Man standing is similar to Man Spreading. Man Standing is when a man lifts one foot up and places it on an object in front of him (Normally a chair or bench) at about waist height and leaves the other foot on the ground. This gives the image of a man spreading his legs while standing. This is normally done to express dominance over others, usually women. It is also very common for the men to very slightly thrust forward and back while man standing.
"Look at that guy man standing over there!"
"Wow how gross why can't he just stand normally instead we have to see his buldge."
"Fuck me! Why do the guys around me always man stand?"