scurril or scurrile /skurˈil/

1. Like or worthy of a vulgar buffoon
2. Indecently opprobrious or jocular

• Jack-priest
• Jack-pudding
• jack rabbit
• jack rabbits
• jack-rafter
• jack-rafters
• Jack Robinson
• Jack Russell
• Jack Russells
• Jack Russell terrier
• Jack Russell terriers
• mattings
• mattins
• mattock
• mattocks
• mattoid
• mattoids
• mattress
• mattresses
• maturable
• maturate
• maturated
• maturates
• maturating
• maturation