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

Aeryck and Ed were blarting back and forth so much, that it turned into a straight out Blart-a-thon!
by LilOlMe2004 February 6, 2006

by SnugZ October 13, 2008

I wonder what Beer I should bring to the Zom-Brew-Thon? I hope we watch a movie I have not seen before!
by The Brew-Thusiast April 13, 2010

This is an extended masturbation session of gratitude, formed by combining the words "wank" + the German word "danke" for thank you + "thon" from marathon.
Mom: Alright son, I fixed you a great supper. How are you going to thank me?
Son: Mom, I am going to do a wanke-danke-thon in your honor tonight.
Mom: Oh I am flattered!
Son: Mom, I am going to do a wanke-danke-thon in your honor tonight.
Mom: Oh I am flattered!
by SantoshGeorge February 21, 2009

Setting - Coffee house sound system plays not too loudly but not too quietly: Bwangbwong, bwangbwong, pog-me-thon... bwangbwong... barista crafts a reed flute...
Customer: Can I get a Cafe Americano? Actually, just cream and sugar.
Customer: Can I get a Cafe Americano? Actually, just cream and sugar.
by Stone St, USA December 3, 2010

by herbie-T September 27, 2007
