cry in (one's) beer
To feel sorry for oneself. To bemoan one's fate or life. Don't cry in your beer, man. I know you're bummed about Amanda, but if she broke up with you, she's not the one.
cry in one's beer
Fig. to feel sorry for oneself. She calls up, crying in her beer, and talks on and on about her problems. Don't cry in your beer. Get yourself straightened out.