Doing a dad is an act that is hilarious to those all around you but their laughter only drives you into the downward spiral known as doing a dad. Doing a dad shoots your emotive side into overdrive warp speed. It can start off small, but the tears keep coming until all that is left of someone doing a dad is a blithering mound of tears sniffles and soiled handkerchiefs. All it takes is a few jokes at the person's expense like prodding their man-breasts and saying "Gor blimey, they're like titties them, tubbs", then the water works come on much to the amusement of the audience.

The phrase comes from a real person, with real emotional displays, who regulary did a dad. Do a dad is now a common phrase all over the world, usually preceeded by don't.

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