OC The taberNaCl. (Sorry..) (X-posted to dad jokes.)
Lettuce pray
Lettuce, pray.
X and V. There's a C between them.
Because he is an x-boxer
Physics-ly impossible. There's your dad joke for the day.
Punchlines that got married and settled down.
Standard deviation of the mean (OC, as far as I know)
OC A receeding Herr line.
Three. One to post it, the second to post a better punchline in the comments, and the third to complain that it's a repost.
Because they cantaloupe. (The wife thought of this one... hopefully nobody else has posted it)