So acronym geek gave me these meanings of GBCK. I think it's very apparent that if you GBCK you either go to gay bible study or become some sort of German spy in Kuwait. So I think that means you NOT should GBCK, because your other options are not as great as the knot.
Green Building Council Korea
German
Business Council Kuwait
Goody Blick & the Country Kind
Grace Bible Church Kapolei
German Business Council in Kuwait
German Business Council of Kuwait
Goody Blick and the Country Kind
Good Bye Cruel Knot
Gay Bible Circle Kiel
George Bark Competition Karting
German Bad Clan Killers
Goody Blick and the Country Kindunknown