How to write 老头儿老头儿

prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity; old (of people); venerable (person); experienced; of long standing; always; all the time; of the past; very; outdated; (of meat etc) tough

head; hair style; the top; end; beginning or end; a stub; remnant; chief; boss; side; aspect; first; leading; classifier for pigs or livestock