'bulky man' is correct and usable in written English.
You can use it to describe someone who is large and strong. For example, "The referee was a bulky man, easily towering over everyone else in the stadium."
A bulky man entered the bar shortly afterward.
Mr. Wheeler is a bulky man of thirty-four, with small features and a childlike expression.
Mr. Khan, a bulky man with the mien of a student acquired degrees and aliases at an equal rate.
Ominous music chills the soundtrack as a bulky man with a flashlight, accompanied by surly guard dogs, inspects the locks.
Mr. Halloran, a bulky man, had just about managed to throw on a long-sleeve T-shirt and bluejeans when he was taken into custody.
A bulky man with thick, unkempt tufts of hair that seem to run randomly across his head, he was gracious but not much of a conversationalist.
"They send a beautiful woman to our floor yesterday, rather than the threatening, bulky men".
In video of the events, several bulky men in civilian clothes can be seen grabbing protesters and dragging them behind the police line.
The term originally referred to bulky men from the ruling Assad family and related clans who operated with impunity as smugglers and extortionists in the coastal town of Latakia during the 1970s.
Partly out of spite, but mostly out of awe, Mr. Hill ingratiated himself with the bulky men in pinstripe suits who used to hang around a cab stand near his home.
"You don't have to be Einstein to figure out which game is a far more impressive spectacle," O'Neill commented, making unsubstantiated assumptions about the father of modern physics' stance on watching bulky men fall over a lot.
