Tubeworming
A type anal sex wherein one aligns the anuses and defecates into each-other. Ideally passing the feces back and forth continually.
Julia and I were tubeworming for hours last night... I need to change my whole mattress.
Tubeworm
A coward or worthless person. Because tubeworms are spineless and they have no guts.
Person A: I can't believe the supreme court isn't protecting women's rights!
Person B: I know, they're such tubeworms!
Person B: I know, they're such tubeworms!