(adj.) Cool in an extremely laid-back way; so laid-back that it may be taken for squareness, straightness, or unconsciousness. The word is derived from the lingo of prestigious East-Coast universities where some people wear extremely expensive shoes that fit perfectly, yet never say 'Woah! Yow! Look at my shoes, man,' the way proles do.
He is so shoe he takes his girlfriend to church -- but it's ironic -- maybe