1) Grossly indecent 2) Obscene 
indecent; immoral
• (a.) Lustful; lewd; salacious; indecent; obscene.
Ith`y·phal'lic adjective [ Latin ithyphallicus , from ithyphallus , Greek ..., membrum virile erectum , or a figure thereof carried in the festivals of Bacchus.] Lustful; lewd; salacious; indecent; obscene. 
an attribute referring to scenes of Bacchic festivals at which phalli were carried.
From the Greek word meaning; 'with erect penis'. Various gods are represented in this form. Most notably Min and Amun.
of or pertaining to the phallus carried in ancient festivals of Bacchus. · grossly indecent; obscene. · noting or pertaining to any of several meters employed in hymns sung in Bacchic processions.