Nagasumi, while trying to calm them down, accidentally calls them Dad, making them even angrier.
Miura: Oops, you're right, Freudian slip. Takagi: I don't think "crash and burn" was the right phrase there Miura: Let's crash and burn! Let's do this!
The protagonist's client, a high school girl named Nami, has just came out of a small pond she fell into and is berating herself for her inability to remember the circumstances of her death. Seme and uke, in addition to their usage by the Yaoi and Yuri crowd, also are used by the martial arts crowd.
She once referred to dodgeball positions as " seme" and " uke" (when the positions are known as "seme" and "mamori").
It is an involuntary word substitution that supposedly reveals something you're repressing, hiding, or simply trying not to talk about. A Freudian Slip is, as one wag has put it, "when you say one thing and mean your mother".