b.o.b.-a-thon: when a girl comes home from a hard day and takes a nice long bath, then proceeds to have a marathon session with her favorite vibrator. Includes multiple orgasms over a 2-3 hour period.
Sunshine: So what'd you do last night, Katie?
Katie: I had a b.o.b.-a-thon, and I feel so much better today! I was at it for like three hours! Six orgasms and no stress today baby!
Katie: I had a b.o.b.-a-thon, and I feel so much better today! I was at it for like three hours! Six orgasms and no stress today baby!
by KatieZ1983 October 25, 2008
Get the b.o.b.-a-thonmug. B.O.B (Big One Brewing) - This generally occurs after eating a big greasy meal. Your stomach starts to churn and you know that you should be looking for a toilet fairly quickly. B.O.B is often followed by prarie dogging which is then followed by crowning. It is possible to go from a B.O.B to a massive exposion bypassing prarie dogging and crowning.
I just ate a burrito, and I feel a B.O.B. Please show me the bathroom before I leave it on the floor.
by Deep River Dooker August 16, 2012
Get the B.O.B.mug. A plane was grounded because a note with B.O.B. was found, yet noone knew whether it meant a bomb or a hot woman.
by Stuart October 17, 2004
Get the B.O.B.mug. by mikeT9694 December 3, 2009
Get the B.O.B.mug. by tha fundraiser September 3, 2011
Get the B.O.B.mug.