simple past tense and past participle of pile up

present participle of pile up

plural of pile-on

plural of sheet piling

(vulgar, slang) Something that is not true, a mass of lies (refers to bullshit). / (vulgar, slang) Any worthless structure or device.

(colloquial) In the position of highest authority.

(obsolete) A voltaic battery used in biological experiments.

present participle of pig pile

simple past tense and past participle of pig pile

(dated) Any material with a long, soft nap.