Urban Jousting
4 guys standing in a 4-way intersection jacking off into the 4 corners until ejactulation.
Guys! We should totally go Urban Jousting tonight after the party!
Urban jousting
When two (male) hobos run towards one another at top speed with their erect genitalia pointed in the direction of the other in an adversarial manner with the intent to injure or main the other in a display of dominance.
Look at that display of urban jousting on the street corner. Someone is going to get hurt.