Boy Howdy was also the name of an American country music band from the 1990’s. The term has not direct link or reference to them however.
Joe: Mrs. Robinson sure is one MILF
Tom: Boy howdy!
As Agreement (sarcastic):
Johnny: Don't you just love pointless office meetings where the company tries to rah rah rah you into caring about sales?
Roberto: Boy howdy do I ever!
Norman: Boy howdy am I hungry, let's consume tacos!
2. Expression meaning "Oh, gosh, I'm a hick". If you can use "boy howdy" in a sentence with a straight face, you're about as far out of the urban mainstream as I can imagine.
2. Boy howdy, I'm goin' to the big city. Topeka, here I come!
2. An anatomical orifice used in the act of sex, such as a woman's vagina or a person's anus. The mouth is not typically referred to as a 'boy howdy,' though it, too, fits this description.
Boy me & Rick went down to the crick last yesterday and just guess what we saw!
- Now what was that?
We saw us three of THE LOVELIEST creatures bathin' in all god's glory.
-Did you see nipple? It only counts if you saw nipple.
Hell yes we saw nipple.
Golly gee Kyle, me and the boys are heading over to the bowling ally and we're gonna have us a mighty good time! We might even get a little crazy and have a whole dang pitcher of soda, I bet we will. Wanna come?
Condom or nothing, Rick. Make your choice. I don't care if they're not fun, I'll TELL you what's not fun. Growing a whole goddamn person inside you for nine months and then having to push the gaddamn thing out of your boy howdy. I mean it. Condoms or gtfo.