Horse around and Whoop it up

Horse around verb - To engage in attention-getting playful or boisterous behavior.

Whoop it up and horse around are semantically related In some cases you can use "Whoop it up" instead a verb "Horse around".

Whoop it up verb - Celebrate noisily, often indulging in drinking; engage in uproarious festivities.

Horse around and whoop it up are semantically related in frolic topic. Sometimes you can use "Horse around" instead a verb "Whoop it up", if it concerns topics such as tumble playfully.