You may say 'ooki na/ookii otoko.'
there are several way to say man in Japaneses ningen, jin, dansei, hito, and the big one banbutsunoreichou.
''ASEDREGALLIO'' IS BEST FRIEND IN JAPANESE MAN
otoko
Fat man
oki inu
Otokonohito=Man (pronounced as o-to-ko-no-sto)
A big one man!
You may say 'otoko' or 'dansei.'
ryuu
"Kurogane" or "Tetsu" = Iron + "Man" = Otoko
You may say 'ookii ashi' to refer to a foot that is big. Written: 大きい足
"neko no onesan" which basically means "cat's big sister"