when something or someone acts in a stupid manner, or does something highly unusual. Originated from the twitch streamer, 'Tubbo' who often does strange things and those things are referred to as Tubbo Moments. Per example, if one asks how much a chocolate bar costs when it clearly states the price across the front of the chocolate bar, that might be referred to as a Tubbo Moment, as that is something that the streamer/youtuber Tubbo would do.
A prostitute, a homelessstreet whore or a meth mouthed meth whore, willing to provide $20 hand jobs for food and/or drug money.
Roger drove through the hood on his way home from work and picked up a prostitute who graciously slapped his man meat around when he asked for a Tubber Rubber.