"who let the dogs out"是什么意思?

"who let the dogs out"是什么意思?

呵呵 这个我知道其实是一首歌 名字叫who let the dogs out谁把狗弄出来了
歌词如下:
Who let the dogs out
(woof, woof, woof, woof...)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)

(woof, woof, woof, woof)

When the party was nice, the party was jumpin' (Hey, Yippie, Yi, Yo)
And everybody havin' a ball (Hah, ho, Yippie Yi Yo)
I tell the fellas "start the name callin'" (Yippie Yi Yo)
And the girls report to the call
The poor dog show down

Who let the dogs out (woof, woof, woof, woof...)

I see ya' little speed boat head up our coast
She really want to skip town
Get back off me, beast off me
Get back you flea infested monger

Who let the dogs out (woof, woof, woof, woof...)

I'm gonna tell {Hey, Yippie, Yi, Yo}
To any girls calling them canine {Yippie, Yi, Yo}
Tell the dummy "Hey Man, It's part of the Party!" {Yippie Yi, Yo}
You fetch a women in front and her mans behind {Yippie, Yi, Yo}
Her bone runs out now

Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)
Who let the dogs out (woof, woof, woof, woof)

Say, A doggy is nuttin' if he don't have a bone All dogy hold ya' bone, all doggy hold it
A doggy is nuttin' if he don't have a bone All dogy hold ya' bone, all doggy hold it

Wait for y'all my dogs, the party is on
I gotta get my girl I got my myind on
Do you see the rays comin' from my eye
What could you be friend
That Benji man that's breakin' them down?
Me and My white short shorts
And I can't seek a lot, any canine will do
I'm figurin' that's why they call me faithful
'Cause I'm the man of the land
When they see me they doah-ooo(howl)
Who let the dogs out (woof, woof, woof, woof...)

意思是"是让狗出去了?"