make out that
make out that (something is the case)
To act or speak in a manner that purports a falsehood or deception. At the tail end of the presentation, Sarah started making out that it was my team that caused the huge delay. After the disruption, everyone in class made out that nothing had happened.
make out that...
to pretend that [something is so]. He made out that he hadn't seen me. We all made out that we hadn't heard the sound.