Stag do in Grantham

The speaker is taking two days off for a stag do in Grantham, where the plans include bringing a bull and a croquet set. Despite some skepticism about the activities like doing a park run after the first night, the speaker assures that it will be a wild event without any euphemisms involved. The speaker reminisces about a previous stag do where a friend vomited into his helmet during go-karting the morning after the celebration.