normal friend: "no it's been 45 minutes"
Bumbuddy: "oh my god i can't believe you just said that"
normal friend: "dude, you only miss bumming them"
2. To engage in anal intercourse.
3. To get something by begging, or mooching.
2. Those fellows over there enjoy bumming. The taller one bottoms.
3. That wanker's always bumming fags off of me.