All fluids have "viscosity" Viscosity is a measure of the resistance of a fluid when a stress is applied to it.
Basically viscosity is "thickness". Water is not very, thick thus having a lower viscosity, syrup is thicker, thus having a higher viscosity, etc.....

Do I think it is a good idea, probably not................and yes I did have reservations for a Holiday Inn, in Utah. I just didn't make it.