it's a toothbrush

The teacher, in an attempt to stimulate their minds, asked the class the following question, " What is bright red and
shiny?"
Little Johnny jumped up and shouted, " A fire engine !!!!???"
"No! No!" said the teacher," But I like the way you think.. Anyone else?"
Little Susan replied that it was an apple and the teacher was happy except Johnny of course..
Anyway, Little Johnny asked the teacher if he
can ask a question to which she nodded OK.
" What is long,hard, rounded and has hair at
one end? "
"JOHNNY!!!" she screamed, "WE'LL HAVE NONE OF
THAT TALK HERE..."
Johnny replied, " No, it's a toothbrush, but
I like the way you think"..