geezer
geezer
noun
/ˈɡiːzə(r)/
(informal)
1 ​(British English) a man
Some geezer called Danny did it.
2 ​(North American English, disapproving) an old man, especially one who you think is rather strange
Word Origin
late 19th cent.: representing a dialect pronunciation of earlier guiser ‘mummer’.
e.g.
No wonder this old geezer knew so much! どおりで詳しいわけだぜこのオヤジ！ (/yupeco/『ゴールデンカムイ』1話)