pick your poison

1. Tell me what alcoholic beverage you would like to drink. I'm buying the first round—pick your poison. A: "Hi there, could I get something to drink?" B: "Of course you can. Pick your poison."

2. You have to choose between two or more equally undesirable or detrimental choices. A: "Should I order the parts and try rebuilding the computer myself, or just take it to computer shop and have them fix it?" B: "Pick your poison, really. You might save some money doing it yourself, but it's going to be a massive pain the neck."