It's a play on the old Johnny Carson joke that got him into a bit of trouble. Looked around and can't find a video of it, looks like it's been removed from YT.
If I remember right, JC was interviewing Arnold Palmer's wife and asked if there was anything she does to give him luck. She said something to the effect "I message his balls." to which Johnny responded with "I bet that makes his putter rise.".
Pretty racy stuff for 70's tv.
Funny how this gets retold a different way every time. Like an urban legend. The way I heard it (and this was decades ago), she says," I kiss his balls", and Johnny says, "I'll bet that makes his putter flutter!"
There's another one where a well known beautiful actress comes on with her cat, and says to Johnny, "Would you like to pet my pussy?". Johnny says, "Sure, get that damn cat out of the way!". I've heard various versions of this one as well. Some say it was Raquel Welch, others say it was Ann Margret. I'm not sure anymore who it really was.