Skipping work and other responsibilities for the sole purpose of having sex. Preferably illicit sex with someone other than your spouse or significant other.
1st observed by myself in the movie, "Bachelor and the Bobby Soxer", featuring Cary Grant with Shirley Temple as the high schooler who's out to "get him". Unfortunately for her plans, her big sister is a local municipal judge. Laughs ensue following his lecture at an assembly at her high school. The term is used as they are just about to exit the house on their way to a big community picnic. the answer to the question of whether she was ready for the big day and how did she feel was, "Hookey-dookey".