Spungus is a fungal growth caused by gungus. One might describe spungus as 'mushrooms growths' as well. It has led to the popular saying 'Rangle Rangle Spungus'.
Spungus is also seen as a delicacy in some parts and is frequently attributed to being a prime ingredient in the gels that cause the feelings of Tongle.
"If you have Spungus, you may want to see your physician immediately."
"Oh man, Spungus is the best thing about this ointment. It feels great in my nether areas."
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!