Sausage Link
The male version of a Daisy Chain. When a group of men form a complete circle with each man butt-fucking and being butt-fucked simultaneously (it also works orally). 
This is a tricky sex act. If the group of participating men don't keep a good rhythm going, things can easily get out of whack, breaking the link and sometimes causing serious injury. 

Having participated in their first successful sausage link, Tom and Dave would finally be treated with more respect by the seasoned veterans in their group.