A specific time and place where some little fag named jarek can get his shit rocked by a big man named Chad. Probably by a large bridge so then chad can throw jarek off and watch him squirm around in the water with his broken arms and legs. Or at a zoo at 1 a.m. so then Chad can throw jarek into a pit of snakes. Or at ionia middle school so then Chad can have his goon caleb neeley beat jarek up at 8 a.m.
A time and place friend is a friend that exists only within a specific time frame and at a specific place, and in any other scenario that friendship would not have formed. Usually in the context of traveling abroad or being in a novel situation.