Bamfy can't be defined. It is a state of mind that transcends all
lamfy-ness. But in case you're not bamfy enough to just get that (which is nothing to be ashamed of, few ever earn the honorable distinction of "bamfy"), the word is the adjective form of
BAMF, meaning "Bad Ass Mother F***er". Among the ranks of the bamfy are the Dos Equis spokesman, David Tennant, and Chuck Norris. Oh yeah, and Mother Teresa. What a bamf.