What do you think a limp - reraise of my raise means?
I run across this on occasion.
Today there were 4 limpers, I was in the SB and had AK so I raised 4xBB (not enough, on reflection. Should have been 3 + 4 X or so).
2 limpers after me called, and the third minraised my raise, last limper folded, I called, the other 2 callers called. Flop came low cards, we checked to the reraiser and he made a large bet and everyone folded.
I can only envision two situations to do this;
!) if he thinks I'm weak and he's betting that the others have marginal hands to begin with, or
2) he's limped AA or KK, has seen that the pot is now big and decided it's worthwhile to take the lead on the hand and take it down on the flop.
Are there other likely reasons, other than being an aggressive donk? (today's example was a freeroll, after all)