receiving a bid

For a frat? Yeah you can hold a bid for a fraternity. You only get one bid for sororities

But be careful big man. Nobody likes a wishy-washy punk. Are you in or are you not in? One or both of those bids may evaporate if they fill up their pledge class. So if you take too long you may find that one or both of those bids are no longer valid for pledging -- sort of like Saban offering several running backs, but then later in the process one of the backs finds that their offer is no longer good once other backs commit.

when i was given bids at the fraternities i rushed, only one sat me down and gave me a bid card. the others did something a little different and holding "wasn't" an option. rush very carefully.

Most fraternities don't make you sign a bid card until your official bid night, and by then you should 100% know which fraternity you will be going. But that doesn't necessarily mean you can go shopping around that long.

Most of the best fraternities are full or nearly full by the time sorority bid day comes around, and for guys who have been holding or timid about which fraternity to go (read: noncommittal), well, they usually get caught in the middle. My advice to you is this: figure out which fraternity you like the most soon and stick with them. Don't leave anything to chance.