"That story's pretty far-fetched. Nobody's going to believe it."
feel blue: feel sad and depressed.
"I'm feeling blue because I haven't had any mail except bills for a long, long time."
fire someone: dismiss someone from a job because of poor performance.
"If you continue to be late for work, the company will fire you."
feel puny: feel unwell, ill.
"Ted was feeling puny yesterday, so he decided not to go to work."
fender-bender: automobile accident.
"Traffic was really slow on the freeway this morning
because of a fender-bender in one of the westbound lanes."
for ages: for a very long time.
"Where's Marie? I haven't seen her for ages."