polish defense


you mean 1.d4 b5 or systems with 2.b5? the former is quite risky . it will either transpose to a st george or you end up playing an orangutan a move down, as a a 1.b4 player i have analyzed that latter and concluded that is it MAYBE playable but there is likely few lines that could give black trouble and besides white can try many things and still keep advantage. like 1.d4 b5 2.c4.
stuff like 1.nf3 nf6 2.g3 b5!? or even 1.b3 b5 are actually fully playable and take advantage of specific factors in the position (in the former g3 means going for bxb5 via e3 is a waste of time, in the latter there is no good way of going for bxb5, that kind of play is not fully harmonious wit b3 bb2)

Compadre_J - the trap is: 1. d4 b5 2. e4 Bb7 3. Bd3 Nf6 4. e5 (??) Bxg2. White thinks , that he can press the knight , but he lose the rook. Trap is very basic but sometimes this work ( for example in bullet when opponent have less time ), but ussualy only on begginers.

play it if you feel you can get away with it, but i woudnt trust it( and i love me those offbeat flank openings.)
the trap you mention really only works at a very low level of play but if you want to keep it and play something more sound, why not 1.e4 b6 (1.d4 b6 also invites transposition with 2.e4) here is a similar trap 1.e4 b6 2.d4 bb7 3.bd3 nf6 e5, bxg2. 3.bd3 is considered the best move but 3.nc3 is more common but there is another trap 3.nc3 e6 4.nf3 bb4 5.bd2 Bxc3 6.bxc3 Bxe4