Synonyms for Jockstrap:

adj.

manly (adjective)
jock.

n.

jersey, box, leotard, cup, shin guard, shin pad, kit. athletic supporter (noun)
cup.
jockstrap (noun)
jock, suspensor, athletic supporter.

Other synonyms:

shin guard, shin pad, leotard. cup, jersey. kit. box. Other relevant words:
cup, leotard, box, kit, jersey.