That's what I said last Monday

A prickish statement brimming with undertones of adoration, playfulness and belonging often used in lieu of the longer and more appropriate: "That's what I so poorly tried to explain last Monday, but failed at when I got caught up in your smile. I am so impressed that you came to the same conclusion, if only you could see my smile instead of hearing the mumble of my foot in my mouth."

Her: *Heartfelt sentiment*

Him: "That's what I said last Monday"

<Mood is killed>

Her: "Who says that?"

part that goes over the fence last

A chicken's rump, aka the Pope's nose.

Give the kid the part that goes over the fence last. Little kids like fat.

man and boy, every last one of them

A sarcastic retort made during a chaffing tongue-in-check conversation, which pokes fun at a jocular unsubstantiated incorrect summary of an entire group of people

chap1: Did you see that guy balance on a toilet, upside down, with his legs chained together, with his head in a football, playing a 12-string guitar and singing "I Did It My Way"?
chap2: Bah. Street artists. They're all the same. Trying to fleece you for bag of crap performance.
chap1: Yea. They're all the same. Man and boy, every last one of them.
chap2: And another thing, the toilet wasn't even plumbed in - it wouldn't have flushed ...
chap1: Yea. Plumbers. They're all wasters. Man and boy, every last one of them.

That's not what your mom said last night

Just about. The greatest comeback to anything. Used mainly when talking about the size of genitals, but can apply to anything else.

Person A - Hey look at our science. That's bigger than yours!
Person B - That's not what your mom said last night!
Person C - Oh BURN.

You yeed your last haw, partner

When somebody yee haws before they dies, they yeed their last haw

Guy 1: Yee haw
Guy 2: You yeed your last haw, partner
Guy 1: OH NOOOOOOO

Last Guy I'd Ever Go Gay for

A way to suggest another man is particularly unattractive.

Fugly

Soon after sighting the sheer size of Jacob's schnoz, Spencer swiftly shouts, "He's the last guy I'd ever go gay for!"

that's the sound your mother made last night

originated from SNL when sean connery said it to trebek. can be used to any sound that could be sexual.

Trebek: What sound do dogs make?
Sean Connery: Moo
Trebek: No.
Sean Connery: But that's the sound your mother made last night!