This is a traditional joke which means the men are marrying actual women.

The first marries a Greek girl and he tells her to clean the house, cook the meals and wash the pots. After the first day he can see that she has only cleaned the house. After two days he can see that the house is clean, he has a meal waiting on the table and all the pots are washed.

The second man marries a Thai girl and he too tells his new wife to clean the house, cook the meals and wash the pots. After the first day he can see that she has not cleaned the house. After two days he can see that the house has been cleaned, he has a meal waiting on the table and all the pots are washed.

The third man marries a lass from Barnsley (a mining town in Yorkshire) and he tells her to clean the house, cook the meals and wash the pots. After the first day he can see nothing. After two days the swelling has gone down and he can now see that the house looks exactly the same as it was. After three days and in some pain he is able to get off the couch and just about manage to do a little light housework before preparing a meal for his bride. After four days he is fully affiliated to the downtrodden brotherhood of husbands.