Euphemisms in the Bible:

Euphemism is the figure of speech in which an inoffensive expression is substituted for one 
that would be considered culturally indelicate, offensive, or taboo. In many languages 
euphemisms often affect terms referring to body functions, sex, undesirable people, or 
references to deity. There are many euphemisms in the Bible. Bible translators need to test
how they translate these euphemisms to ensure that their target audiences understand the 
true (figurative) meaning of the original biblical expression. It is perfectly fine to 
translate a biblical euphemism with an equivalent euphemism in the target language, if the 
culture of the target language speakers requires a euphemism (not all cultures require 
euphemisms for the same things).

Here are some of the euphemisms in the Bible:
(work in progress, collection by Wayne Leman)

Gen. 3:19 return to the ground = die
Gen. 4:1 knew = have sex with (also 1 Kings 1:4)
Gen. 18:11 the manner/way of women = menstruation (also Gen. 31:35)
Gen. 24:2 thigh = male genitals
Gen. 34:1 defiled = had sex with
Gen. 38:5 added = conceived
Gen. 49:33 was gathered to his people = died
Ex. 21:10 duty of marriage = conjugal right (sex)
Deut. 21:14 Heb. ‘anah: humble/afflict/humiliate = have sex with (also 2 Sam. 13:22)
Lev. 15:2 flesh = penis (also Ez. 16:26; 23:20)
Lev. 15:16 seed = semen
Lev 18 repeatedly: "uncover nakedness" = have sex with (in a shameful way)
Lev 18:14 "approach" = have sex with
Lev 18:20 "give lying-down" = have sex with (as this word $:KOBET is only
used for sex, maybe it was not a euphemism, but it comes from the root "lie
down")
Lev 18:22 "lie with" = have sex with
Lev 18:23 "stand in front of" = have sex with (of a woman)
Num. 5:22 thigh = female genitals
1 Sam. 24:3 cover feet = relieve oneself
2 Sam. 16:21 go in to = have sex with
1 Kings 2:6 go down to the grave = die
1 Kings 18:27 gone aside = relieving himself (an English euphemism!)
2 Kings 2:10 slept with his fathers = died
Is. 7:20 feet = genitals
Is. 57:8 hand = penis
cut off = kill
lamp go out = die
Matt. 1:19 send her away = break his engagement (betrothal) with her
Matt. 1.25 know = have sex with (also Luke 1:34)
Matt. 21:25 heaven = God (also Luke 15:18)
Matt. 26:24 goes = will die
Matt. 26:65 the Power = God
Mark 9:7 voice = voice of God
Mark 14:61 the Blessed (one) = God
Luke 1:32 the Most High = God
Luke 1:36 in her sixth month = in her sixth month of pregnancy
Luke 2:5 EGKUWi = pregnant (what is a literal translation of the Greek?)
Luke 13:29 those that will come from eat and west, from north and south = Gentiles
Luke 23:46 breathed his last = died
Acts 1:25 went to his own place = got what he deserved (i.e. punishment/death; 
the Greek expression does not mean that Judas went to his own place, that is, 
his own home)
Acts 2:39 those that are far off = the Gentiles
Acts 7:60 fell asleep = died
Acts 22:22 take this person away from the earth = kill him
1 Cor 7:1 touch = have sex with
1 Cor. 7:5 come together again = resume normal sexual relations
1 Cor 11.30 sleep = due
Phil. 1:23 depart = to die
1 Tim. 5:17 honor = pay
Heb. 13:4 marriage bed = sexual relations
2 Pet. 2:17 blackness of darkness = 
Jude 7 strange flesh = homosexual partners