For some reason my friends and I, in 1972, started prefixing the word 'pseudo' to almost everything we said.
So we had 'pseudosteak' and 'pseudomusic' and so on. Seemed cute at the time. Until the night that I was at home and addressed Misery Guts as 'pseudodad'. Well he really isn't my father; he's my stepfather. But I remember to this day the look on his face when I called him Pseudodad.
Now that I'm playing the same role that he did I understand.
I never again called him pseudodad.