• term used to describe ones mood when sleep deprived or tired. Signs of being slap happy include inane rambling, strange remarks, odd random behavior (such as giving oneself a wedgie), uncontrollable laughter at ones own jokes.


    Slap happy meaning & definition 1 of Slap happy.


  • when you are extremely tired (like if you stay up till 1 or 2 in the morning) and everything makes you laugh

    Slap happy meaning & definition 2 of Slap happy.


  • The state of being one may experience after abstaining from sleep for a long period of time. Could be described as being so sleepy that you feel hyper and alert.

    Slap happy meaning & definition 3 of Slap happy.

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