An action word, a step above being a chubby chaser. if a thin man is with an overly obese woman, not a woman who is slightly overweight, it is considered whale watching
"Wow, that guy is really skinny...why is he with a girl that's like three hundred pounds?" "Oh, he must be whale watching"
The sport of watching a fatty go from being hideous to gorgeous in the space of 10 pints
Donz "Dim you going whale watching again tonight?"
Dim "Enough talk lads Kim is giving me the eye" downs pint number 6
Veitch "wahheyy enjoy the whale watching"
Jack "Don't forget the harpoon"