Arm Chair Athlete
One who excessively criticises others athletic attempts while failing to excel or even attempt to achieve athletic success themselves.
"I can't watch the boxing with Dave anymore, he tuts all the time and says both guys are crap"
"Isn't Dave like 5 stone overweight"
"yep"
"And doesn't he get out of breath just going to the fridge"
"yep"
"what an arm chair athlete"
"yep"
"Isn't Dave like 5 stone overweight"
"yep"
"And doesn't he get out of breath just going to the fridge"
"yep"
"what an arm chair athlete"
"yep"