to behave in a sexually frustrated, provocative, or uncontrollably loud and annoying manner (slang/derogatory)

你在这儿大喊大叫什么？叫春呢！

to call or cry out for a mate during the breeding season, typically referring to the sound made by cats

半夜里，窗外野猫叫春的声音吵得我睡不着觉。