Combination of speculation and accusation. Accusing someone based on a made-up story.
Jenny - What happened last night, you didn't call. You were probably out with another woman, right?
Jacob - Hey stop with the specusation, I left my phone at work, OK?
To attempt to pass an opposing walker by changing alignment and stepping to one side, but with the result that both walkers end up moving in the same direction, awkwardly shuffling to avoid each other.
See also: sidewalk shuffle
Don't you love it when you walk down a sidewalk and speculambulate with a total stranger until you both bust out laughing?
A term used to refer to somebody that is capable of inflicting high amounts of harm and damage upon any unfortunate person that happens to anger them; an absolute weapon; the hard man of the town. These types of people, from whom I advise that you stay at least 500 kilometres away, are incredibly dangerous and can win a fight against even the toughest silverback gorilla.