It's an effing nuisance.
真是混帐事。

There was a lot of effing and blinding going on.
咒骂声没完没了。

They wouldn't let him mess around with the radio so he started effing and blinding.
他们不允许他瞎弄那台收音机，因此他就骂了起来。

I’m so effing tired. I took a nap during the day yesterday, so I couldn’t fall back asleep until the middle of the night. If I take a nap now, the same shit will happen again. Gotta break the cycle!
真的好累，昨天白天睡了一觉没想到后半夜也睡不着觉。现在如果再睡觉的话晚上又要睡不着了。要停止这恶性循环。