Pajama Mama
A stupid way to say you're surprised. You say 'mama pajama' like it's a weird chant, and if you stretch the 'a' in 'pajama,' it means you're a fag and you're being sarcastic.
He said, 'Mama pajama!' when he saw his ex at the mall.
She yelled, 'Mama pajama!' when she got a bad grade.
He said, 'Mama pajama!' and then laughed at himself.