In a decentralized, trustless manner? No. That's the job of the blockchain, which requires being online and waiting for 1 or more confirmations.
There are all sorts of discussions about how Bitcoin can be used instantly (usually by trusting an intermediary), to make it a little more palatable for in-store use for both parties, but bitcoins are fundamentally online.
Physical bitcoins, like Casascius or printed paper wallets, come close to being offline. But you're still having to trust that the coin/paper is really worth what they're saying it is.