Lad/læd/ Definition 1 of 3Pro Tip 1/3Young Male Use 'lad' for males, typically under 30. Don't use for older men. The lads were playing football in the park. Pro Tip 2/3Friendliness 'Lad' suggests friendliness and informality, often used among friends. Come on, lad, let's get you home. Pro Tip 3/3British Most common in British English, less used in American English where 'guy' might be used. He's the funniest lad in our class.