Existentialist: I think therefore I am
Excellentistentialist: I think therefore I am awesome
Exhaustistentialist: I think therefore I sleep
Vexestentialist: I think therefore I worry
Xanaxistentialist: I think therefore I take drugs
Intoxistentilist: I think therefore I drink
Pecsestentialist: I think therefore I lift weights
Excerstentialist: I think therefore I work out
Ingestistentialist: I think therefore I eat
Sexistentialist: I think therefore I bonk
Textistentialist: I think therefore I message
Netistentialist: I think therefore I blog
Any others???