The name 'man cold' disguises the true terrible, debilitating disease that is the man cold. Nearly all men will die from man colds unless they are administered immediately with large amounts of mindless TV such as daytime TV, or childrens' cartoons. It is essential that they not move from bed or a comfy sofa to allow for rehabilitation, and must have tissues and man cold medicine (such as chocolate biscuits, McDonalds, or a nice cup of tea) brought to them constantly by a nearby female.
A Vietnamese cold roll is when a Viet mandips his penis into cold fish sauce (nuoc mam) then puts his cold erect smelly penis into a girl to give her a Vietnamese experience.
Girl 1: Vietnamese guys are really bad at sex acts.
Girl 2: That's not true. A Viet guy gave me a Vietnamese cold roll and it felt so good!
Girl 1: Wow! I want a viet guy to give me a Vietnamese cold roll now!