He and his dad spent the weekend together for some 'male bonding'.
a 'bonding' agent [=a glue, an adhesive]
mother-child 'bonding'
(..) excited about Buzz. But you know he'll always have a special place for you. -Yeah, like the attic. -All right, that's it! Unidirectional bonding strip. Mr Lightyear wants more tape. Listen, Light Snack, you stay away from Andy. He's mine, and no one is taking him away from me. What are you talking about? Where's that bonding strip? And another thing, stop with this spaceman thing! It's getting on my nerves! Are you saying you wanna lodge a complaint with Star Command? (..)1995 Toy Story